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Cheap flights from Seattle to Boston (SEA - BOS) from $107

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — BOS
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Boston Logan Intl are usually found in January or February, booked 41 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Seattle to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 16, 2024.

Popular in

July

Cheapest in

January

Round-trip from

$218

One-way from

$143
High demand for flights, 26% potential price rise
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Best time to find cheap flights, 39% potential price drop
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From Seattle/Tacoma Intl to Boston Logan Intl
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One-way flight from Seattle/Tacoma Intl to Boston Logan Intl
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What is the cheapest day to fly round-trip from Seattle to Boston?

Saturday flights are found to be more expensive to fly from Seattle to Boston. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Boston.

How far in advance should I book a flight from Seattle to Boston?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 42 days in advance, which can save you up to 43% on flights from Seattle to Boston compared to booking the week you need them. Waiting 42 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $340. For sooner than that we have options available in the next 3 days from $544.

What is the cheapest month to fly from Seattle to Boston?

January is one of the best times of the year to fly to Boston from Seattle. Prices for January average $375 per person but you can even find prices for as low as $99. The most expensive prices can be found in the month of July. Opting for a January flight can save you 34% on your journey compared to booking in July

When is the cheapest time to fly from Seattle to Boston (SEA - BOS)?

Unlike in the morning, when flights are generally more expensive, you can save up to 24% on flights from Seattle to Boston by exploring options for tickets in the afternoon.

Cheap Spirit Airlines flights from Seattle to Boston

Explore cheap flight options specifically provided by Spirit Airlines for the route between Seattle and Boston. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Find some of the cheapest Spirit Airlines flights traveling from Seattle to Boston. Make sure to double check the flight details before booking.
Tue 6/49:40 pmSEA - BOS
2 stops21h 51mSpirit Airlines
Tue 6/1110:56 amBOS - SEA
2 stops24h 36mSpirit Airlines
Deal found 5/15$227
Wed 9/49:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Tue 9/107:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Deal found 5/15$241
Tue 6/49:40 pmSEA - BOS
3 stops22h 20mSpirit Airlines
Tue 6/1110:56 amBOS - SEA
2 stops24h 36mSpirit Airlines
Deal found 5/15$242
Thu 8/229:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Wed 9/46:00 amBOS - SEA
2 stops17h 21mSpirit Airlines
Deal found 5/15$245
Mon 6/39:40 pmSEA - BOS
2 stops14h 33mSpirit Airlines
Mon 6/102:40 pmBOS - SEA
2 stops21h 19mSpirit Airlines
Deal found 5/15$248
Sat 8/179:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Tue 8/277:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Deal found 5/15$251
Tue 8/209:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Sat 8/247:00 amBOS - SEA
1 stop9h 58mSpirit Airlines
Deal found 5/15$252
Thu 8/229:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Wed 9/46:10 amBOS - SEA
3 stops29h 35mSpirit Airlines
Deal found 5/15$254
Tue 6/119:49 amSEA - BOS
2 stops19h 49mSpirit Airlines
Tue 6/182:26 pmBOS - SEA
2 stops21h 06mSpirit Airlines
Deal found 5/14$262

  • If you’re traveling from Seattle to Boston, one of the more common airlines traveling that route is Spirit Airlines. Seattle to Boston flights are typically 56% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $402.40 RT. The cheapest Spirit Airlines flight found for this route was $138. When traveling from Seattle to Boston on Spirit Airlines, the most popular airport to depart from is Seattle/Tacoma Intl Airport and the most popular airport to arrive at is Boston Logan Intl Airport. When flying from Seattle to Boston, Spirit Airlines flights are 8% more popular than any other airline flying that same route.

Cheap Sun Country Air flights from Seattle to Boston

Explore cheap flight options specifically provided by Sun Country Air for the route between Seattle and Boston. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
To aid your search, here are some of the cheapest Sun Country Air flights we've found from Seattle to Boston. Ensure the flight price, dates, time, and airline match your criteria before you book.
Thu 5/306:05 pmSEA - BOS
1 stop14h 58mSun Country Air
Mon 6/39:00 amBOS - SEA
1 stop9h 59mSun Country Air
Deal found 5/15$260
Thu 5/306:05 pmSEA - BOS
1 stop14h 58mSun Country Air
Sat 6/111:30 amBOS - SEA
1 stop8h 10mSun Country Air
Deal found 5/14$265
Thu 5/306:05 pmSEA - BOS
1 stop14h 58mSun Country Air
Tue 6/1111:14 amBOS - SEA
1 stop8h 01mSun Country Air
Deal found 5/15$284
Mon 6/35:05 pmSEA - BOS
1 stop14h 18mSun Country Air
Wed 6/1211:12 amBOS - SEA
1 stop8h 30mSun Country Air
Deal found 5/15$294
Mon 5/275:05 pmSEA - BOS
1 stop14h 28mSun Country Air
Mon 6/39:00 amBOS - SEA
1 stop9h 59mSun Country Air
Deal found 5/15$299
Tue 7/96:07 pmSEA - BOS
1 stop26h 09mSun Country Air
Thu 7/116:00 amBOS - SEA
1 stop29h 12mSun Country Air
Deal found 5/16$305
Wed 5/295:45 pmSEA - BOS
1 stop13h 48mSun Country Air
Wed 6/511:14 amBOS - SEA
1 stop11h 11mSun Country Air
Deal found 5/15$309
Sat 5/256:15 pmSEA - BOS
1 stop13h 18mSun Country Air
Thu 5/3011:30 amBOS - SEA
1 stop8h 30mSun Country Air
Deal found 5/14$315
Fri 6/1411:59 pmSEA - BOS
1 stop7h 30mSun Country Air
Tue 6/1811:12 amBOS - SEA
1 stop25h 10mSun Country Air
Deal found 5/14$330

  • Sun Country Air is one of the most popular airlines used for those traveling from Seattle to Boston. Flights on this route from Sun Country Air typically cost $401.20 RT, a price that is 65% more expensive than the average Seattle to Boston flight. The cheapest flight found was $139 RT. The most popular departure airport in Seattle when flying to Boston is Seattle/Tacoma Intl Airport. The most popular airport to fly into when visiting Boston is Boston Logan Intl Airport. When flying from Seattle to Boston, Sun Country Air flights are 8% more popular than any other airline flying that same route.

Cheap Seattle to Boston flights in May & June 2024

Find cheap flight options from Seattle to Boston specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
These are some of the best deals we've found on flights to Boston in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 6/49:40 pmSEA - BOS
2 stops21h 51mSpirit Airlines
Tue 6/1110:56 amBOS - SEA
2 stops24h 36mSpirit Airlines
Deal found 5/15$227
Tue 6/49:40 pmSEA - BOS
3 stops22h 20mSpirit Airlines
Tue 6/1110:56 amBOS - SEA
2 stops24h 36mSpirit Airlines
Deal found 5/15$242
Tue 5/289:40 pmSEA - BOS
3 stops23h 15mSpirit Airlines
Mon 6/310:27 pmBOS - SEA
2 stops25h 02mSpirit Airlines
Deal found 5/16$246
Mon 6/39:40 pmSEA - BOS
2 stops14h 33mSpirit Airlines
Mon 6/102:40 pmBOS - SEA
2 stops21h 19mSpirit Airlines
Deal found 5/15$248
Tue 5/289:40 pmSEA - BOS
3 stops23h 15mMultiple Airlines
Mon 6/39:00 amBOS - SEA
1 stop9h 59mMultiple Airlines
Deal found 5/16$254
Mon 6/39:40 pmSEA - BOS
2 stops14h 33mMultiple Airlines
Wed 6/511:14 amBOS - SEA
1 stop11h 11mMultiple Airlines
Deal found 5/15$259
Thu 5/306:05 pmSEA - BOS
1 stop14h 58mSun Country Air
Mon 6/39:00 amBOS - SEA
1 stop9h 59mSun Country Air
Deal found 5/15$260
Tue 6/119:49 amSEA - BOS
2 stops19h 49mSpirit Airlines
Tue 6/182:26 pmBOS - SEA
2 stops21h 06mSpirit Airlines
Deal found 5/14$262
Tue 6/49:40 pmSEA - BOS
2 stops21h 51mMultiple Airlines
Fri 6/78:35 amBOS - SEA
2 stops17h 19mMultiple Airlines
Deal found 5/14$263

Seattle to Boston 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Boston in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
These are some of the best deals we've found on flights to Boston in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 6/49:40 pmSEA - BOS
2 stops21h 51mSpirit Airlines
Tue 6/1110:56 amBOS - SEA
2 stops24h 36mSpirit Airlines
Deal found 5/15$227
Wed 9/49:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Tue 9/107:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Deal found 5/15$241
Tue 6/49:40 pmSEA - BOS
3 stops22h 20mSpirit Airlines
Tue 6/1110:56 amBOS - SEA
2 stops24h 36mSpirit Airlines
Deal found 5/15$242
Thu 8/229:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Wed 9/46:00 amBOS - SEA
2 stops17h 21mSpirit Airlines
Deal found 5/15$245
Mon 6/39:40 pmSEA - BOS
2 stops14h 33mSpirit Airlines
Mon 6/102:40 pmBOS - SEA
2 stops21h 19mSpirit Airlines
Deal found 5/15$248
Sat 8/179:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Tue 8/277:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Deal found 5/15$251
Tue 8/209:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Sat 8/247:00 amBOS - SEA
1 stop9h 58mSpirit Airlines
Deal found 5/15$252
Thu 8/229:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Wed 9/46:10 amBOS - SEA
3 stops29h 35mSpirit Airlines
Deal found 5/15$254
Mon 6/39:40 pmSEA - BOS
2 stops14h 33mMultiple Airlines
Wed 6/511:14 amBOS - SEA
1 stop11h 11mMultiple Airlines
Deal found 5/15$259

Non-stop flights to Boston from Seattle

Discover non-stop flight options from Seattle to Boston. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
If you're seeking options on non-stop flights from Seattle to Boston, check out these fares. Users seeking other options on flights from Seattle to Boston should update the search form at the top of the page.
Tue 6/1111:25 pmSEA - BOS
Nonstop5h 27mDelta
Sat 6/156:55 pmBOS - SEA
Nonstop6h 17mDelta
Deal found 5/15$357
Sat 6/811:25 pmSEA - BOS
Nonstop5h 27mDelta
Sat 6/156:55 pmBOS - SEA
Nonstop6h 17mDelta
Deal found 5/15$358
Tue 6/118:40 pmSEA - BOS
Nonstop5h 29mJetBlue
Fri 6/147:00 amBOS - SEA
Nonstop6h 13mJetBlue
Deal found 5/15$362
Fri 6/1411:30 amSEA - BOS
Nonstop5h 28mJetBlue
Tue 6/187:00 amBOS - SEA
Nonstop6h 13mJetBlue
Deal found 5/15$367
Tue 8/1310:00 pmSEA - BOS
Nonstop5h 23mDelta
Thu 9/56:35 pmBOS - SEA
Nonstop6h 23mDelta
Deal found 5/15$372
Thu 5/3010:31 pmSEA - BOS
Nonstop5h 28mDelta
Wed 6/56:55 pmBOS - SEA
Nonstop6h 17mDelta
Deal found 5/15$377
Wed 6/128:40 pmSEA - BOS
Nonstop5h 29mJetBlue
Sun 6/167:00 amBOS - SEA
Nonstop6h 13mJetBlue
Deal found 5/15$382
Thu 6/1311:30 amSEA - BOS
Nonstop5h 28mJetBlue
Sun 6/167:00 amBOS - SEA
Nonstop6h 13mJetBlue
Deal found 5/16$387
Wed 5/223:27 pmSEA - BOS
Nonstop5h 32mDelta
Wed 5/296:55 pmBOS - SEA
Nonstop6h 17mDelta
Deal found 5/14$397

Seattle to Boston flights leaving soon

Find last-minute flight options from Seattle to Boston for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Users seeking a last-minute flight from Seattle to Boston should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Sat 5/256:15 pmSEA - BOS
1 stop13h 18mMultiple Airlines
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mMultiple Airlines
Deal found 5/14$298
Sat 5/256:15 pmSEA - BOS
1 stop13h 18mMultiple Airlines
Wed 5/2910:40 amBOS - SEA
3 stops25h 05mMultiple Airlines
Deal found 5/14$306
Sat 5/256:15 pmSEA - BOS
1 stop13h 18mSun Country Air
Thu 5/3011:30 amBOS - SEA
1 stop8h 30mSun Country Air
Deal found 5/14$315
Sat 5/256:15 pmSEA - BOS
1 stop13h 18mMultiple Airlines
Tue 5/285:45 amBOS - SEA
3 stops37h 55mMultiple Airlines
Deal found 5/14$318
Wed 5/223:35 pmSEA - BOS
Nonstop5h 24mMultiple Airlines
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mMultiple Airlines
Deal found 5/15$324
Sat 5/256:15 pmSEA - BOS
1 stop13h 18mMultiple Airlines
Thu 5/3011:16 amBOS - SEA
3 stops32h 19mMultiple Airlines
Deal found 5/14$331
Sat 5/256:15 pmSEA - BOS
1 stop13h 18mMultiple Airlines
Tue 5/284:50 pmBOS - SEA
2 stops26h 50mMultiple Airlines
Deal found 5/14$340
Thu 5/235:20 pmSEA - BOS
1 stop14h 13mMultiple Airlines
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mMultiple Airlines
Deal found 5/15$361
Thu 5/235:20 pmSEA - BOS
1 stop14h 13mSun Country Air
Thu 5/3011:30 amBOS - SEA
1 stop8h 30mSun Country Air
Deal found 5/15$365

One-way flights to Boston from Seattle

Search for one-way flight options from Seattle to Boston. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a look at some of the one-way flights we've detected from Seattle to Boston. Those seeking round-trip flights from Seattle to Boston should utilize the search form at the the top of the page.
Tue 6/49:35 amSEA - BOS
3 stops20h 03mSpirit Airlines
Deal found 5/15$107
Mon 8/199:12 pmSEA - BOS
1 stop23h 03mSpirit Airlines
Deal found 5/15$111
Tue 6/49:40 pmSEA - BOS
2 stops21h 51mSpirit Airlines
Deal found 5/15$112
Tue 6/49:40 pmSEA - BOS
2 stops21h 51mSpirit Airlines
Deal found 5/15$113
Tue 8/279:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/15$114
Tue 6/119:49 amSEA - BOS
2 stops19h 49mSpirit Airlines
Deal found 5/16$115
Wed 8/289:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/15$120
Thu 8/229:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/15$121
Tue 6/49:35 amSEA - BOS
3 stops25h 50mSpirit Airlines
Deal found 5/15$126

Find flights from Seattle to Boston within your budget

Customize your flight search to find flights from Seattle to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$227 - $352

Route

Depart

Return

Price

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 6/4

2 stops21h 51m

Boston Logan Intl

Tue 6/11

2 stops24h 36m

$227

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 9/4

1 stop10h 37m

Boston Logan Intl

Tue 9/10

1 stop16h 21m

$241

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 6/3

2 stops14h 33m

Boston Logan Intl

Wed 6/5

1 stop11h 11m

$259

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 5/30

1 stop14h 58m

Boston Logan Intl

Mon 6/3

1 stop9h 59m

$260

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 5/30

1 stop14h 58m

Boston Logan Intl

Sat 6/1

1 stop8h 10m

$265

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 9/11

1 stop9h 31m

Boston Logan Intl

Tue 9/17

1 stop8h 35m

$283

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 9/11

Nonstop5h 23m

Boston Logan Intl

Tue 9/17

Nonstop6h 21m

$317

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 9/9

1 stop8h 35m

Boston Logan Intl

Wed 9/11

Nonstop6h 17m

$326

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 9/5

Nonstop5h 23m

Boston Logan Intl

Mon 9/9

Nonstop6h 21m

$352

Flights are sorted by cheapest first

Deals found on 5/15

When is the best time to book a flight from Seattle to Boston?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Boston. Price data was last updated on May 10, 2024.
Booking 41 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from Seattle to Boston?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Boston. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Boston flight should consider departing on Wednesday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Boston by month

Plan your trip from Seattle to Boston by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Boston is currently $115 while a round-trip flight costs $281. Price data was last updated on May 12, 2024.

Currently, January is the cheapest month in which you can book a flight from Seattle to Boston (average of $218). Flying from Seattle to Boston in July is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$218

February

$220

March

$263

April

$286

May

$275

June

$316

July

$328

August

$285

September

$258

October

$259

November

$258

December

$233

Temperature and rainfall in Boston by month

Plan your trip to Boston by taking into account the average temperature and rainfall totals by month.

BOS

Temperature

30.2 - 73.4 °F

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated May 16, 2024.
Read reviews from past customers who have flown Spirit Airlines, Sun Country Air and American Airlines from Seattle to Boston. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Alaska Airlines
8.1
Very good
9,157 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Delta
8.0
Very good
10,673 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

JetBlue
7.6
Good
4,472 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

United Airlines
7.4
Good
10,924 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

American Airlines
7.3
Good
14,514 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Seattle to Boston?

    Booking a flight from Seattle/Tacoma Intl (SEA) to Boston Logan Intl (BOS) is your only option if you wish to fly from Seattle to Boston. On a typical day, there are 22 flights from Seattle/Tacoma Intl to Logan Intl, all of which are around 5h 07m for a nonstop flight. You can also purchase a plane ticket from 8 airlines when you book a flight from Seattle/Tacoma Intl to Boston.

  • Can I find flights from Seattle to Boston for under $300 on Cheapflights?

    Yes, there are multiple flights from Seattle to Boston for under $300. The cheapest flight booked recently is on Spirit Airlines for just $227, but on average you can expect to pay $257.

  • Are there nonstop flights from Seattle to Boston for under $400 on Cheapflights?

    Cheapflights has at least 20 direct flights from Seattle to Boston under $400. A good price for a nonstop flight from Seattle to Boston is less than $402.

  • Are there last-minute flights available from Seattle to Boston for under $300?

    There are currently 20+ open flights from Seattle to Boston within the next 7 days for less than $300.

  • What days are nonstop flights available from Seattle to Boston?

    Days when nonstop flights are available for this flight are: Thursday, Friday, Saturday.

  • How popular is this Seattle to Boston flight route?

    Within the past month, 32 users have taken a look at flights from Seattle/Tacoma Intl to Boston Logan Intl.

  • How many flights depart from Seattle to Boston on average per day?

    5 flight departures from Seattle to Boston per day on average.
    Morning (6am - Noon) - 60% of flight departures
    Afternoon (Noon - 6pm) - 40% of flight departures

  • How long is the flight from Seattle to Boston?

    Airlines like Spirit Airlines, Sun Country Air, and American Airlines fly from Seattle to Boston in about 9h 31m. The time it takes to get you to your destination can typically vary by up to 12h 20m. There are 2502 mi between Seattle and Boston. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Seattle to Boston round-trip?

    Our cheapest airline available from Seattle to Boston is Spirit Airlines. Our recent data shows that you can find tickets from as low as $227 on this airline. Additional options worth looking into are Sun Country Air and American Airlines, starting at $260 and $283 round-trip. Spirit Airlines is currently priced 39% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seattle to Boston one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $107. Users have also found prices from $138 and $142 on Sun Country Air and American Airlines, respectively.

  • What are the most popular airlines that fly from Seattle to Boston?

    The most popular airlines flying from Seattle to Boston are Undisclosed Carrier, American Airlines and Alaska Airlines. Something to consider prior to booking your flight.

  • What are the most reliable airlines from Seattle to Boston?

    Before booking your flight to Boston from Seattle, check out the most reliable airlines to get you to your destination on time: EL AL (92%), KLM (91%), China Eastern( 83%).

  • What are the cheapest flights from Seattle to Boston?

    Looking at all options, your cheapest flight can be booked for $143. While the most popular route (Seattle/Tacoma Intl - Boston Logan Intl) can be booked for $227 on average our data indicates $813 when flying from Seattle to Boston.

  • What does SEA to BOS mean?

    This is defined as Seattle/Tacoma Intl Airport (SEA) and Boston Logan Intl Airport (BOS). Codes like Boston Logan Intl Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Seattle to Boston that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Boston flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Boston with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Boston flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Boston that include hotel bookings?

    Yes. In addition to deals on Seattle to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Boston.

  • Can I find deals for business class flights from Seattle to Boston?

    Yes. Cheapflights offers flight deals from Seattle to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Boston that allow pets onboard?

    Many airlines flying from Seattle to Boston offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Boston?

    Yes, you can often find last-minute deals on Seattle to Boston flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Boston flight deals updated?

    The Seattle to Boston flight deals you see on this page were last updated on 5/15.

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Fly from Seattle to Boston on these airlines
Choose from the following airlines for your flight from Seattle to Boston. Flights are based on user searches made on Cheapflights and were last updated on May 16, 2024.

Delta flights from Seattle/Tacoma Intl to Boston Logan Intl
Alaska Airlines flights from Seattle/Tacoma Intl to Boston Logan Intl
JetBlue flights from Seattle/Tacoma Intl to Boston Logan Intl

Top 7 airlines flying from Seattle to Boston

Discover the top 7 airlines that operate flights from Seattle to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$123Average$280FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
JetBlueCheapest$133Average$373FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest$133Average$336FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$138Average$402FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapest$139Average$401FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Sun Country AirCheapest$147Average$367FlexibilityNo cancel feeOn-time83%
Search Sun Country Air flights
American AirlinesCheapest$243Average$411FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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Search flights from Seattle to Boston by cabin class

Find flights from Seattle to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Seattle to Boston

Find hourly flight availability from Seattle to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 16, 2024.
1%of flight departuresEarly morningMidnight to 6 am
48%of flight departuresMorning6 am to noon
37%of flight departuresAfternoonNoon to 6 pm
14%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Seattle to Boston

Explore weekly flight availability from Seattle to Boston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 16, 2024.
Sunday21daily flights
Monday23daily flights
Tuesday23daily flights
Wednesday22daily flights
Thursday24daily flights
Friday22daily flights
Saturday20daily flights

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Boston?

When you search for this flight from Seattle to Boston, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Boston?

Cheapflights simply makes it quick and affordable to book flights from Seattle to Boston by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Seattle to Boston with no change fees?

Certainly. Search results for flights to Boston from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to Boston become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Boston from Seattle today and book when prices fit your budget.

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