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$146+ Cheap flights from Boston to Seattle (BOS - SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SEA
Jul 30 — Aug 61
From?
To?
Tue 7/30
Tue 8/6
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 July 25, 2024.

Popular in

July

Cheapest in

January

Average price

$508

Round-trip from

$146
(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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Average for round-trip flights in July 2024
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From Boston Logan Intl to Seattle/Tacoma Intl
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What is the cheapest day to fly round-trip from Boston to Seattle?

Thursday is generally a great day to depart. Flying on this day could help you save up to 14%.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 41 days in advance, which can save you up to 57% on flights from Boston to Seattle compared to booking the week you need them. Waiting 41 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 $341. For sooner than that we have options available in the next 3 days from $536.

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

January can be a great time to fly to Seattle from Boston with a flight ticket averaging about $362. Cheapflights users have found deals in the month of January for as cheap as $99. The most expensive prices can be found in the month of July.

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

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 33% on airfare.

Cheap Boston to Seattle flights in July & August 2024

Find cheap flight options from Boston to Seattle specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 25, 2024.
The lowest fares we've come across on flights traveling from Boston to Seattle in July and August 2024. Check back soon for alternative fares.
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/158:25 pmBOS - SEA
2 stops20h 38mSpirit Airlines
Sat 8/243:03 pmSEA - BOS
3 stops25h 27mSpirit Airlines
Deal found 7/25$277
This FareScan deal was found by Cheapflights users on 7/25. 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.
Tue 8/62:54 pmBOS - SEA
2 stops32h 06mSpirit Airlines
Thu 8/155:45 amSEA - BOS
1 stop21h 45mSpirit Airlines
Deal found 7/25$278
This Booking.com deal was found by Cheapflights users on 7/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/163:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Mon 8/264:18 pmSEA - BOS
2 stops22h 24mSpirit Airlines
Deal found 7/25$279
This FareScan deal was found by Cheapflights users on 7/24. 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 8/313:42 pmBOS - SEA
1 stop31h 03mSpirit Airlines
Fri 9/65:30 amSEA - BOS
2 stops15h 09mSpirit Airlines
Deal found 7/24$280
This FareScan deal was found by Cheapflights users on 7/24. 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 8/243:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Sat 8/315:45 amSEA - BOS
2 stops15h 42mSpirit Airlines
Deal found 7/24$281
This FareScan deal was found by Cheapflights users on 7/25. 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 8/84:10 pmBOS - SEA
2 stops35h 25mSpirit Airlines
Sat 8/174:18 pmSEA - BOS
2 stops16h 49mSpirit Airlines
Deal found 7/25$282
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/134:24 pmBOS - SEA
3 stops25h 54mSpirit Airlines
Wed 8/214:18 pmSEA - BOS
3 stops19h 34mSpirit Airlines
Deal found 7/25$283
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1110:33 amBOS - SEA
2 stops17h 02mSpirit Airlines
Tue 8/203:03 pmSEA - BOS
3 stops20h 49mSpirit Airlines
Deal found 7/25$284
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/171:08 pmBOS - SEA
2 stops24h 01mSpirit Airlines
Sun 8/183:03 pmSEA - BOS
3 stops18h 04mSpirit Airlines
Deal found 7/25$285

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 2,752,877 searches. Data last updated July 25, 2024.
The lowest fares we've come across on flights traveling from Boston to Seattle in July and August 2024. Check back soon for alternative fares.
This JetBlue deal was found by Cheapflights users on 7/24. 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.
Thu 11/75:45 pmBOS - SEA
Nonstop6h 32mJetBlue
Sat 11/911:59 pmSEA - BOS
Nonstop5h 07mJetBlue
Deal found 7/24$277
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/43:15 pmBOS - SEA
3 stops25h 20mSpirit Airlines
Sun 9/85:30 amSEA - BOS
2 stops15h 09mSpirit Airlines
Deal found 7/24$278
This Booking.com deal was found by Cheapflights users on 7/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/163:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Mon 8/264:18 pmSEA - BOS
2 stops22h 24mSpirit Airlines
Deal found 7/25$279
This FareScan deal was found by Cheapflights users on 7/24. 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 8/313:42 pmBOS - SEA
1 stop31h 03mSpirit Airlines
Fri 9/65:30 amSEA - BOS
2 stops15h 09mSpirit Airlines
Deal found 7/24$280
This FareScan deal was found by Cheapflights users on 7/24. 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 8/243:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Sat 8/315:45 amSEA - BOS
2 stops15h 42mSpirit Airlines
Deal found 7/24$281
This FareScan deal was found by Cheapflights users on 7/25. 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 8/84:10 pmBOS - SEA
2 stops35h 25mSpirit Airlines
Sat 8/174:18 pmSEA - BOS
2 stops16h 49mSpirit Airlines
Deal found 7/25$282
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/134:24 pmBOS - SEA
3 stops25h 54mSpirit Airlines
Wed 8/214:18 pmSEA - BOS
3 stops19h 34mSpirit Airlines
Deal found 7/25$283
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1110:33 amBOS - SEA
2 stops17h 02mSpirit Airlines
Tue 8/203:03 pmSEA - BOS
3 stops20h 49mSpirit Airlines
Deal found 7/25$284
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/171:08 pmBOS - SEA
2 stops24h 01mSpirit Airlines
Sun 8/183:03 pmSEA - BOS
3 stops18h 04mSpirit Airlines
Deal found 7/25$285

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 2,752,877 searches. Data last updated July 25, 2024.
Book one of these great deals on flights from Boston to Seattle. Tip: verify your flight details before completing your reservation.
This FareScan deal was found by Cheapflights users on 7/23. 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 7/3110:14 pmBOS - SEA
2 stops29h 21mSpirit Airlines
Wed 8/147:23 pmSEA - BOS
2 stops13h 44mSpirit Airlines
Deal found 7/23$213
This FareScan deal was found by Cheapflights users on 7/24. 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 8/77:18 pmBOS - SEA
2 stops32h 17mSpirit Airlines
Tue 8/138:54 pmSEA - BOS
2 stops21h 40mSpirit Airlines
Deal found 7/24$216
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/75:34 pmBOS - SEA
3 stops34h 01mSpirit Airlines
Wed 8/144:18 pmSEA - BOS
2 stops16h 49mSpirit Airlines
Deal found 7/24$219
This FareScan deal was found by Cheapflights users on 7/25. 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.
Tue 8/64:10 pmBOS - SEA
2 stops35h 25mSpirit Airlines
Wed 8/215:45 amSEA - BOS
2 stops15h 42mSpirit Airlines
Deal found 7/25$221
This FareScan deal was found by Cheapflights users on 7/24. 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 8/72:54 pmBOS - SEA
2 stops32h 36mSpirit Airlines
Tue 8/1310:10 pmSEA - BOS
3 stops32h 19mSpirit Airlines
Deal found 7/24$224
This FareScan deal was found by Cheapflights users on 7/24. 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.
Tue 8/65:34 pmBOS - SEA
2 stops29h 26mSpirit Airlines
Tue 8/135:10 amSEA - BOS
2 stops24h 13mSpirit Airlines
Deal found 7/24$226
This FareScan deal was found by Cheapflights users on 7/25. 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.
Tue 8/64:10 pmBOS - SEA
2 stops35h 25mSpirit Airlines
Tue 8/135:10 amSEA - BOS
2 stops24h 13mSpirit Airlines
Deal found 7/25$229
This FareScan deal was found by Cheapflights users on 7/24. 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 8/84:10 pmBOS - SEA
2 stops35h 25mSpirit Airlines
Mon 8/194:18 pmSEA - BOS
2 stops24h 48mSpirit Airlines
Deal found 7/24$232
This FareScan deal was found by Cheapflights users on 7/24. 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.
Tue 8/65:34 pmBOS - SEA
2 stops29h 26mSpirit Airlines
Tue 8/135:10 amSEA - BOS
3 stops35h 51mSpirit Airlines
Deal found 7/24$239

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 2,752,877 searches. Data last updated July 25, 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 Cheapflightsfares deal was found by Cheapflights users on 7/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/243:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Deal found 7/24$164
This FareScan deal was found by Cheapflights users on 7/23. 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 8/36:50 amBOS - SEA
2 stops30h 49mSpirit Airlines
Deal found 7/23$165
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/72:43 pmBOS - SEA
3 stops29h 49mSpirit Airlines
Deal found 7/24$166
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/910:00 pmBOS - SEA
3 stops29h 35mSpirit Airlines
Deal found 7/24$167
This American Airlines deal was found by Cheapflights users on 7/24. 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 8/145:19 pmBOS - SEA
1 stop9h 18mAmerican Airlines
Deal found 7/24$168
This Delta deal was found by Cheapflights users on 7/25. 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.
Sun 10/207:10 amBOS - SEA
Nonstop6h 21mDelta
Deal found 7/25$169
This KAYAK deal was found by Cheapflights users on 7/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1210:00 pmBOS - SEA
3 stops25h 00mSpirit Airlines
Deal found 7/24$170
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/98:43 amBOS - SEA
2 stops18h 52mSpirit Airlines
Deal found 7/25$171
This United Airlines deal was found by Cheapflights users on 7/23. 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.
Tue 10/222:30 pmBOS - SEA
1 stop11h 24mUnited Airlines
Deal found 7/23$173

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 2,752,877 searches. Data last updated July 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$146 - $271

Route

Depart

Return

Price

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 8/21

3 stops26h 50m

Seattle/Tacoma Intl

Wed 8/28

2 stops16h 49m

$146

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 8/21

2 stops21h 27m

Seattle/Tacoma Intl

Tue 8/27

2 stops29h 09m

$148

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 8/13

2 stops17h 02m

Seattle/Tacoma Intl

Wed 8/14

2 stops13h 44m

$151

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 8/21

2 stops21h 27m

Seattle/Tacoma Intl

Wed 8/28

2 stops15h 42m

$154

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 9/4

Nonstop6h 14m

Seattle/Tacoma Intl

Wed 9/11

2 stops11h 34m

$220

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 9/4

Nonstop6h 30m

Seattle/Tacoma Intl

Tue 9/10

Nonstop5h 22m

$227

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 9/10

Nonstop6h 20m

Seattle/Tacoma Intl

Tue 9/17

1 stop10h 59m

$236

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 9/4

Nonstop6h 14m

Seattle/Tacoma Intl

Mon 9/9

1 stop8h 35m

$261

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 9/3

1 stop8h 58m

Seattle/Tacoma Intl

Sat 9/7

1 stop8h 11m

$271

Flights are sorted by cheapest first

Deals found on 7/24

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 July 23, 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.
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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 July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
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.
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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.

Temperature and rainfall in Seattle by month

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

SEA

Temperature

41 - 66.2 °F

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 July 25, 2024.
To help decide which airline to fly from Boston to Seattle, see what other customers have to say about Spirit Airlines, Delta and JetBlue. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,641 reviews

Overall

8.2

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very good
5,641 reviews
Southwest
8.2
Very good
5,641 reviews

Overall

8.2

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Alaska Airlines
8.1
Very good
9,365 reviews
Southwest
8.2
Very good
5,641 reviews

Overall

8.2

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Delta
8.0
Very good
9,630 reviews
Southwest
8.2
Very good
5,641 reviews

Overall

8.2

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

JetBlue
7.6
Good
3,996 reviews
Southwest
8.2
Very good
5,641 reviews

Overall

8.2

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

United Airlines
7.4
Good
10,000 reviews
Southwest
8.2
Very good
5,641 reviews

Overall

8.2

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

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 22 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 12m.

  • 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 Spirit Airlines for just $146, but on average you can expect to pay $166.

  • Are there nonstop flights from Boston to Seattle for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from Boston to Seattle under $300. A good price for a nonstop flight from Boston to Seattle is less than $280.

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

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

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

    Nonstop flights can be found on the following days: 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 90 times in the past calendar month.

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

    17 flight departures from Boston to Seattle per day on average.
    Afternoon (Noon - 6pm) - 65% of flight departures
    Evening (6pm - Midnight) - 35% of flight departures

  • How long is the flight from Boston to Seattle?

    Departing from Boston to Seattle will take you 26h 50m. The distance between Boston and Seattle is about 2502 mi.

  • What is the cheapest airline to fly from Boston to Seattle round-trip?

    According to our current data, Spirit Airlines ($146), offers the cheapest pricing from Boston to Seattle. This flight start at 59% 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 $164 on Spirit Airlines. Other airlines that offer cheap prices include American Airlines from $168 and Delta from $169 one-way.

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

    Consider LATAM Airlines (85%), China Eastern (77%) or Virgin Atlantic (74%) 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 $920 for a flight from Boston to Seattle. The cheapest flight overall is $148 while the most popular route, (Boston Logan Intl - Seattle/Tacoma Intl) is currently priced at $148.

  • What does BOS to SEA mean?

    Boston Logan Intl Airport is BOS and Seattle/Tacoma Intl Airport is SEA. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

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

    The amount of baggage you can bring on your Boston to Seattle 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 Boston to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boston to Seattle 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 Boston to Seattle that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston to Seattle 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 Boston to Seattle that allow pets onboard?

    Many airlines flying from Boston to Seattle 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 Boston to Seattle?

    Yes, you can often find last-minute deals on Boston to Seattle 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 Boston to Seattle flight deals updated?

    The Boston to Seattle flight deals you see on this page were last updated on 7/25.

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

    Before booking your flight from Boston to Seattle check out the most popular airlines for this route: American Airlines, Alaska Airlines or JetBlue.

  • 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 $246). Flying from Boston to Seattle in July is currently the most expensive (average of $412). 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.

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Top 7 airlines flying from Boston to Seattle

Discover the top 7 airlines that operate flights from Boston to Seattle. 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 2,752,877 searches. Data last updated July 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$113Average$253FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$129Average$363FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$138Average$364FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$139Average$398FlexibilityNo cancel feeOn-time75%
DeltaCheapest$139Average$390FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$174Average$337FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$188Average$428FlexibilityNo cancel feeOn-time71%
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Search flights from Boston to Seattle by cabin class

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

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 July 25, 2024.
1%of flight departuresEarly morningMidnight to 6 am
57%of flight departuresMorning6 am to noon
16%of flight departuresAfternoonNoon to 6 pm
26%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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 July 25, 2024.
Sunday22daily flights
Monday23daily flights
Tuesday25daily flights
Wednesday21daily flights
Thursday22daily flights
Friday25daily flights
Saturday20daily flights

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