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$93+ Cheap flights from Boston to Seattle (BOS - SEA)

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SEA
Oct 15 — Oct 221
From?
To?
Tue 10/15
Tue 10/22
1 adult, Economy
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The best prices from Boston Logan Intl to Seattle/Tacoma Intl are usually found in January or February, booked 82 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Boston to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Seattle (SEA). 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 October 10, 2024.

Popular in

July

Cheapest in

January

Round-trip from

$193
(Kiwi.com)

One-way from

$93
(FareScan)
High demand for flights, 29% potential price rise
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Best time to find cheap flights, 34% potential price drop
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From Boston Logan Intl to Seattle/Tacoma Intl
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One-way flight from Boston Logan Intl to Seattle/Tacoma Intl
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Cheap Boston to Seattle flights in October & November 2024

Find cheap flight options from Boston to Seattle specifically for the months of October and November 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,713,696 searches. Prices were last updated on October 10, 2024.
The lowest fares we've come across on flights traveling from Boston to Seattle in October and November 2024. Check back soon for alternative fares.
This Kiwi.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/67:00 amBOS - SEA
Nonstop6h 21mAlaska Airlines
Sun 11/1010:39 amSEA - BOS
Nonstop5h 20mAlaska Airlines
Deal found 10/10$193
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/316:59 pmBOS - SEA
Nonstop6h 21mDelta
Sun 11/311:30 pmSEA - BOS
Nonstop5h 25mDelta
Deal found 10/10$197
This FareScan deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/301:16 pmBOS - SEA
2 stops31h 23mSpirit Airlines
Tue 11/51:33 pmSEA - BOS
2 stops31h 41mSpirit Airlines
Deal found 10/10$204
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/14:57 pmBOS - SEA
1 stop9h 28mAmerican Airlines
Tue 11/512:35 amSEA - BOS
1 stop7h 48mAmerican Airlines
Deal found 10/9$216
This JetBlue deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/297:00 amBOS - SEA
Nonstop6h 25mJetBlue
Fri 11/111:40 amSEA - BOS
Nonstop5h 26mJetBlue
Deal found 10/10$217
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/236:00 amBOS - SEA
1 stop9h 55mUnited Airlines
Thu 10/3112:47 pmSEA - BOS
1 stop8h 12mUnited Airlines
Deal found 10/9$252
This eDestinos deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/84:37 pmBOS - SEA
2 stops28h 31mMultiple Airlines
Mon 11/117:07 amSEA - BOS
1 stop22h 42mMultiple Airlines
Deal found 10/10$259
This Southwest deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/11:10 pmBOS - SEA
1 stop10h 40mSouthwest
Sun 11/39:55 amSEA - BOS
1 stop12h 10mSouthwest
Deal found 10/10$296
This Sun Country Air deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2411:39 amBOS - SEA
1 stop23h 01mSun Country Air
Sun 10/276:00 amSEA - BOS
1 stop25h 40mSun Country Air
Deal found 10/10$335

Boston to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Boston and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,713,696 searches. Data last updated October 10, 2024.
The lowest fares we've come across on flights traveling from Boston to Seattle in October and November 2024. Check back soon for alternative fares.
This Kiwi.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/67:00 amBOS - SEA
Nonstop6h 21mAlaska Airlines
Sun 11/1010:39 amSEA - BOS
Nonstop5h 20mAlaska Airlines
Deal found 10/10$193
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/316:59 pmBOS - SEA
Nonstop6h 21mDelta
Sun 11/311:30 pmSEA - BOS
Nonstop5h 25mDelta
Deal found 10/10$197
This FareScan deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/301:16 pmBOS - SEA
2 stops31h 23mSpirit Airlines
Tue 11/51:33 pmSEA - BOS
2 stops31h 41mSpirit Airlines
Deal found 10/10$204
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/64:05 pmBOS - SEA
1 stop9h 16mAmerican Airlines
Mon 12/169:00 amSEA - BOS
1 stop8h 22mAmerican Airlines
Deal found 10/9$216
This JetBlue deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/297:00 amBOS - SEA
Nonstop6h 25mJetBlue
Fri 11/111:40 amSEA - BOS
Nonstop5h 26mJetBlue
Deal found 10/10$217
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/236:00 amBOS - SEA
1 stop9h 55mUnited Airlines
Thu 10/3112:47 pmSEA - BOS
1 stop8h 12mUnited Airlines
Deal found 10/9$252
This eDestinos deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/84:37 pmBOS - SEA
2 stops28h 31mMultiple Airlines
Mon 11/117:07 amSEA - BOS
1 stop22h 42mMultiple Airlines
Deal found 10/10$259
This Sun Country Air deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2411:39 amBOS - SEA
1 stop23h 01mSun Country Air
Sun 10/276:00 amSEA - BOS
1 stop25h 40mSun Country Air
Deal found 10/10$335

Boston to Seattle flights leaving soon

Find last-minute flight options from Boston to Seattle 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 2,713,696 searches. Data last updated October 10, 2024.
Book one of these great deals on flights from Boston to Seattle. Tip: verify your flight details before completing your reservation.
This JetBlue deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/195:15 pmBOS - SEA
Nonstop6h 19mJetBlue
Sat 10/269:44 pmSEA - BOS
Nonstop5h 25mJetBlue
Deal found 10/10$314
This Alaska Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/197:00 amBOS - SEA
1 stop10h 56mAlaska Airlines
Wed 11/67:15 amSEA - BOS
Nonstop5h 20mAlaska Airlines
Deal found 10/10$323
This FareScan deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/196:45 amBOS - SEA
2 stops20h 25mSpirit Airlines
Wed 11/61:33 pmSEA - BOS
2 stops30h 35mSpirit Airlines
Deal found 10/10$339
This FareScan deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/176:45 amBOS - SEA
2 stops32h 48mMultiple Airlines
Thu 10/246:30 pmSEA - BOS
2 stops23h 50mMultiple Airlines
Deal found 10/10$361
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1810:59 amBOS - SEA
Nonstop6h 21mDelta
Thu 10/2411:30 pmSEA - BOS
Nonstop5h 25mDelta
Deal found 10/10$404
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/196:00 amBOS - SEA
1 stop10h 10mUnited Airlines
Tue 10/2211:59 pmSEA - BOS
1 stop9h 46mUnited Airlines
Deal found 10/10$406
This American Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/181:01 pmBOS - SEA
1 stop10h 49mAmerican Airlines
Wed 10/2312:26 amSEA - BOS
1 stop9h 52mAmerican Airlines
Deal found 10/10$408
This Southwest deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/172:45 pmBOS - SEA
2 stops12h 45mSouthwest
Sun 10/205:00 amSEA - BOS
1 stop10h 55mSouthwest
Deal found 10/10$541

One-way flights to Seattle from Boston

Search for one-way flight options from Boston to Seattle. 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 2,713,696 searches. Data last updated October 10, 2024.
If you're seeking multiple options on one-way flights from Boston to Seattle, be sure to check out these deals, which are updated often. For those needing a return trip from Boston, there is a search form available above.
This FareScan deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1312:11 pmBOS - SEA
2 stops31h 12mSpirit Airlines
Deal found 10/10$93
This JetBlue deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/117:00 amBOS - SEA
Nonstop6h 30mJetBlue
Deal found 10/10$98
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/204:05 pmBOS - SEA
1 stop9h 55mAmerican Airlines
Deal found 10/9$108
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/94:34 pmBOS - SEA
1 stop9h 15mUnited Airlines
Deal found 10/9$113
This Alaska Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/86:30 pmBOS - SEA
1 stop16h 50mAlaska Airlines
Deal found 10/10$114
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/86:35 pmBOS - SEA
Nonstop6h 40mDelta
Deal found 10/9$119
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/141:25 pmBOS - SEA
2 stops12h 55mSouthwest
Deal found 10/9$133
This Kiwi.com deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/811:37 amBOS - SEA
1 stop8h 51mSun Country Air
Deal found 10/9$177
This FareScan deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/116:30 amBOS - SEA
2 stops13h 58mMultiple Airlines
Deal found 10/10$179

Find flights from Boston to Seattle within your budget

Customize your flight search to find flights from Boston to Seattle 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 2,713,696 searches. Data last updated October 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$193 - $350

Route

Depart

Return

Price

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 11/6

Nonstop6h 21m

Seattle/Tacoma Intl

Sun 11/10

Nonstop5h 20m

$193

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Fri 11/1

Nonstop6h 25m

Seattle/Tacoma Intl

Fri 11/8

Nonstop5h 25m

$197

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Thu 10/31

Nonstop6h 25m

Seattle/Tacoma Intl

Wed 11/6

Nonstop5h 25m

$198

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 10/30

2 stops31h 23m

Seattle/Tacoma Intl

Tue 11/5

2 stops31h 41m

$204

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Fri 12/6

1 stop9h 16m

Seattle/Tacoma Intl

Mon 12/16

1 stop8h 22m

$216

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 10/23

3 stops41h 47m

Seattle/Tacoma Intl

Fri 11/1

2 stops11h 53m

$233

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Fri 11/1

1 stop11h 44m

Seattle/Tacoma Intl

Sun 11/3

2 stops9h 32m

$260

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Thu 10/24

1 stop23h 01m

Seattle/Tacoma Intl

Fri 10/25

1 stop13h 45m

$350

Flights are sorted by cheapest first

Deals found on 10/10

Best time to book a flight from Boston to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Boston to Seattle

Get recent, data-driven insights about flights from Boston to Seattle including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Seattle. Price data was last updated on October 4, 2024.

The price you pay for your flight from Boston to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Find deals

What is the cheapest month to book a flight from Boston to Seattle?

Currently, January is the cheapest month in which you can book a flight from Boston to Seattle (average of $238). Flying from Boston to Seattle in July is currently the most expensive (average of $410). 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.

What is the cheapest time of day to fly from BOS to SEA?

Find hourly flight availability from Boston to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 10, 2024.

One of the essential ways to save on airfare from Boston to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 31% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to Seattle. Price data was last updated on October 6, 2024.

Travelers seeking maximum savings on their Boston to Seattle flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Find deals

Weekly flight availability from Boston to Seattle

Explore weekly flight availability from Boston to Seattle. 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 October 10, 2024.

The most flights from BOS to SEA are scheduled on a Thursday (34 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated October 10, 2024.
To help decide which airline to fly from Boston to Seattle, see what other customers have to say about Delta, United Airlines and Alaska Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,203 reviews

Food

7.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Overall

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.2
Very good
5,203 reviews
Southwest
8.2
Very good
5,203 reviews

Food

7.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Overall

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,392 reviews
Southwest
8.2
Very good
5,203 reviews

Food

7.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Overall

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,958 reviews
Southwest
8.2
Very good
5,203 reviews

Food

7.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Overall

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,593 reviews
Southwest
8.2
Very good
5,203 reviews

Food

7.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Overall

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,366 reviews
Southwest
8.2
Very good
5,203 reviews

Food

7.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Overall

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Boston to Seattle. 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 Boston to Seattle?

    You will need to book a flight from Boston Logan Intl to Seattle/Tacoma Intl if you want to fly from Boston to Seattle. At least 8 different airlines have flights from Logan Intl (BOS) to Seattle/Tacoma Intl (SEA) on a regular basis. There are 25 flights to Seattle from the Boston airport per day. If you manage to book one that is nonstop, then you can expect the flight time from BOS to SEA to be around 6h 09m.

  • Can I find flights from Boston to Seattle for under $200 on Cheapflights?

    Yes, there are multiple flights from Boston to Seattle for under $200. The cheapest flight booked recently is on Alaska Airlines for just $193, but on average you can expect to pay $231.

  • Are there nonstop flights from Boston to Seattle for under $200 on Cheapflights?

    Cheapflights has at least 4 direct flights from Boston to Seattle under $200. A good price for a nonstop flight from Boston to Seattle is less than $343.

  • Are there last-minute flights available from Boston to Seattle for under $400?

    There are currently 8+ open flights from Boston to Seattle within the next 7 days for less than $400.

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

    Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

  • How popular is this Boston to Seattle flight route?

    Flights from Boston Logan Intl to Seattle/Tacoma Intl have been viewed 80 times in the past calendar month.

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

    33 flight departures from Boston to Seattle per day on average.
    Morning (6am - Noon) - 48% of flight departures
    Afternoon (Noon - 6pm) - 21% of flight departures
    Evening (6pm - Midnight) - 30% of flight departures

  • How long is the flight from Boston to Seattle?

    Departing from Boston to Seattle will take you 6h 21m. The distance between Boston and Seattle is about 2502 mi. Generally, flights for this route are nonstop.

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

    According to our current data, Alaska Airlines ($193), JetBlue ($197), and Delta ($198) offers the cheapest pricing from Boston to Seattle. These flights start at 47% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $93 on Spirit Airlines. Other airlines that offer cheap prices include JetBlue from $98 and American Airlines from $108 one-way.

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

    Consider Scandinavian Airlines (100%), LATAM Airlines (94%) or China Eastern (93%) when booking your flight. These represent the most reliable airlines when flying from Boston to Seattle.

  • What are the cheapest flights from Boston to Seattle?

    On average you can expect to pay $1,012 for a flight from Boston to Seattle. The cheapest flight overall is $118 while the most popular route, (Boston Logan Intl - Seattle/Tacoma Intl) is currently priced at $197.

  • What does BOS to SEA mean?