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Cheap flights from Boston to Seattle (BOS - SEA) from $95

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 5/29. 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.
BOS — SEA
May 19 — May 261
From?
To?
Sun 5/19
Sun 5/26
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 30 days in advance, depart on a Wednesday or Tuesday 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 May 14, 2024.

Popular in

August

Cheapest in

January

Round-trip from

$247

One-way from

$142
High demand for flights, 27% potential price rise
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Best time to find cheap flights, 33% 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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What is the cheapest day to fly round-trip from Boston to Seattle?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 9%.

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 31 days in advance, which can save you up to 33% on flights from Boston to Seattle compared to booking the week you need them. Waiting 31 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 $331. For sooner than that we have options available in the next 3 days from $557.

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 $357. 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 August.

When is the cheapest time to fly from Boston to Seattle (BOS - 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 34% on airfare.

Cheap Spirit Airlines flights from Boston to Seattle

Explore cheap flight options specifically provided by Spirit Airlines for the route between Boston and Seattle. 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 2,633,403 searches. Data last updated May 14, 2024.
Find some of the cheapest Spirit Airlines flights traveling from Boston to Seattle. Make sure to double check the flight details before booking.
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mSpirit Airlines
Mon 6/39:40 pmSEA - BOS
2 stops23h 15mSpirit Airlines
Deal found 5/12$210
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mSpirit Airlines
Wed 6/58:59 pmSEA - BOS
2 stops24h 16mSpirit Airlines
Deal found 5/11$223
Wed 8/217:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Wed 8/289:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/12$229
Wed 5/296:10 amBOS - SEA
3 stops29h 35mSpirit Airlines
Mon 6/39:40 pmSEA - BOS
2 stops23h 15mSpirit Airlines
Deal found 5/12$230
Wed 6/52:26 pmBOS - SEA
2 stops21h 06mSpirit Airlines
Tue 6/119:41 pmSEA - BOS
2 stops21h 50mSpirit Airlines
Deal found 5/13$231
Wed 8/216:00 amBOS - SEA
2 stops17h 21mSpirit Airlines
Wed 8/289:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/12$236
Wed 8/217:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Wed 8/289:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/12$238
Wed 8/217:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Wed 8/289:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/12$239
Sat 9/77:00 amBOS - SEA
1 stop9h 58mSpirit Airlines
Sat 9/149:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/12$241

  • If you’re traveling from Boston to Seattle, one of the more common airlines traveling that route is Spirit Airlines. Boston to Seattle flights are typically 55% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $381.38 RT. The cheapest Spirit Airlines flight found for this route was $138. When traveling from Boston to Seattle on Spirit Airlines, the most popular airport to depart from is Boston Logan Intl Airport and the most popular airport to arrive at is Seattle/Tacoma Intl Airport. When flying from Boston to Seattle, Spirit Airlines flights are 8% more popular than any other airline flying that same route.

Cheap American Airlines flights from Boston to Seattle

Explore cheap flight options specifically provided by American Airlines for the route between Boston and Seattle. 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 2,633,403 searches. Data last updated May 14, 2024.
Some of the lowest-priced American Airlines flights we've found at this time heading from Boston to Seattle. Deals frequently update to provide users with more options.
Sat 8/315:59 amBOS - SEA
1 stop8h 23mAmerican Airlines
Tue 9/1010:32 pmSEA - BOS
1 stop7h 47mAmerican Airlines
Deal found 5/12$285
Tue 8/136:12 pmBOS - SEA
1 stop9h 37mAmerican Airlines
Tue 8/201:14 amSEA - BOS
1 stop9h 35mAmerican Airlines
Deal found 5/12$317
Fri 8/302:49 pmBOS - SEA
1 stop11h 08mAmerican Airlines
Wed 9/46:00 amSEA - BOS
1 stop9h 31mAmerican Airlines
Deal found 5/12$328
Thu 8/222:39 pmBOS - SEA
1 stop11h 56mAmerican Airlines
Fri 8/306:00 amSEA - BOS
1 stop9h 36mAmerican Airlines
Deal found 5/13$331
Tue 5/281:04 pmBOS - SEA
1 stop11h 52mAmerican Airlines
Tue 6/115:10 amSEA - BOS
1 stop12h 08mAmerican Airlines
Deal found 5/13$344
Sat 5/254:01 pmBOS - SEA
1 stop8h 49mAmerican Airlines
Wed 6/125:10 amSEA - BOS
1 stop10h 25mAmerican Airlines
Deal found 5/12$346
Sun 5/2611:35 amBOS - SEA
1 stop10h 56mAmerican Airlines
Sat 6/85:53 amSEA - BOS
1 stop10h 24mAmerican Airlines
Deal found 5/12$379
Wed 8/75:19 pmBOS - SEA
1 stop8h 38mAmerican Airlines
Wed 8/219:46 pmSEA - BOS
1 stop8h 30mAmerican Airlines
Deal found 5/13$388
Sat 5/254:01 pmBOS - SEA
1 stop8h 49mAmerican Airlines
Mon 5/2711:59 pmSEA - BOS
1 stop10h 33mAmerican Airlines
Deal found 5/13$402

  • If you’re traveling from Boston to Seattle, one of the more common airlines traveling that route is American Airlines. Flights from American Airlines traveling this route typically cost $380.57 RT. This price is typically 75% more expensive than other airlines that offer Boston to Seattle flights. When booking this route, the cheapest RT price found was $139. The most popular departure airport in Boston when flying to Seattle is Boston Logan Intl Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from Boston to Seattle, American Airlines flights are 8% more popular than any other airline flying that same route.

Cheap Boston to Seattle flights in May & June 2024

Find cheap flight options from Boston to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Prices were last updated on May 14, 2024.
The lowest fares we've come across on flights traveling from Boston to Seattle in May and June 2024. Check back soon for alternative fares.
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mSpirit Airlines
Mon 6/39:40 pmSEA - BOS
2 stops23h 15mSpirit Airlines
Deal found 5/12$210
Wed 5/296:10 amBOS - SEA
3 stops29h 35mSpirit Airlines
Mon 6/39:40 pmSEA - BOS
2 stops23h 15mSpirit Airlines
Deal found 5/12$230
Wed 6/52:26 pmBOS - SEA
2 stops21h 06mSpirit Airlines
Tue 6/119:41 pmSEA - BOS
2 stops21h 50mSpirit Airlines
Deal found 5/13$231
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mMultiple Airlines
Mon 6/35:05 pmSEA - BOS
1 stop14h 18mMultiple Airlines
Deal found 5/13$242
Wed 6/52:26 pmBOS - SEA
2 stops21h 06mSpirit Airlines
Tue 6/119:41 pmSEA - BOS
3 stops33h 10mSpirit Airlines
Deal found 5/13$243
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mSpirit Airlines
Mon 6/39:40 pmSEA - BOS
3 stops20h 56mSpirit Airlines
Deal found 5/13$244
Wed 6/52:26 pmBOS - SEA
2 stops21h 06mSpirit Airlines
Wed 6/129:28 amSEA - BOS
3 stops22h 49mSpirit Airlines
Deal found 5/13$248
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mMultiple Airlines
Sat 6/85:00 pmSEA - BOS
1 stop14h 22mMultiple Airlines
Deal found 5/13$252
Wed 6/52:26 pmBOS - SEA
2 stops21h 06mSpirit Airlines
Wed 6/129:28 amSEA - BOS
2 stops29h 38mSpirit Airlines
Deal found 5/13$256

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 2,633,403 searches. Data last updated May 14, 2024.
The lowest fares we've come across on flights traveling from Boston to Seattle in May and June 2024. Check back soon for alternative fares.
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mSpirit Airlines
Mon 6/39:40 pmSEA - BOS
2 stops23h 15mSpirit Airlines
Deal found 5/12$210
Wed 5/296:10 amBOS - SEA
3 stops29h 35mSpirit Airlines
Mon 6/39:40 pmSEA - BOS
2 stops23h 15mSpirit Airlines
Deal found 5/12$230
Wed 6/52:26 pmBOS - SEA
2 stops21h 06mSpirit Airlines
Tue 6/119:41 pmSEA - BOS
2 stops21h 50mSpirit Airlines
Deal found 5/13$231
Wed 8/217:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Wed 8/289:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/13$238
Wed 8/217:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Wed 8/289:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/12$239
Tue 9/107:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Sat 9/219:38 amSEA - BOS
1 stop10h 37mSpirit Airlines
Deal found 5/12$241
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mMultiple Airlines
Mon 6/35:05 pmSEA - BOS
1 stop14h 18mMultiple Airlines
Deal found 5/13$242
Wed 6/52:26 pmBOS - SEA
2 stops21h 06mSpirit Airlines
Tue 6/119:41 pmSEA - BOS
3 stops33h 10mSpirit Airlines
Deal found 5/13$243
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mSpirit Airlines
Mon 6/39:40 pmSEA - BOS
3 stops20h 56mSpirit Airlines
Deal found 5/13$244

Non-stop flights to Seattle from Boston

Discover non-stop flight options from Boston to Seattle. 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 2,633,403 searches. Data last updated May 14, 2024.
Consider booking one of these non-stop flights heading from Boston to Seattle. If you're looking for other options for flights from Boston to Seattle, make sure to update the search form at the top of page.
Thu 9/57:00 amBOS - SEA
Nonstop6h 17mAlaska Airlines
Tue 9/109:29 pmSEA - BOS
Nonstop5h 15mAlaska Airlines
Deal found 5/13$317
Sat 9/147:59 pmBOS - SEA
Nonstop6h 14mAlaska Airlines
Mon 9/169:29 pmSEA - BOS
Nonstop5h 15mAlaska Airlines
Deal found 5/13$327
Fri 9/137:59 pmBOS - SEA
Nonstop6h 14mAlaska Airlines
Tue 9/179:29 pmSEA - BOS
Nonstop5h 15mAlaska Airlines
Deal found 5/13$332
Tue 8/277:00 amBOS - SEA
Nonstop6h 17mAlaska Airlines
Tue 9/39:29 pmSEA - BOS
Nonstop5h 15mAlaska Airlines
Deal found 5/13$337
Sat 8/317:59 pmBOS - SEA
Nonstop6h 14mAlaska Airlines
Sat 9/79:29 pmSEA - BOS
Nonstop5h 15mAlaska Airlines
Deal found 5/13$347
Fri 9/137:59 pmBOS - SEA
Nonstop6h 14mAlaska Airlines
Mon 9/169:29 pmSEA - BOS
Nonstop5h 15mAlaska Airlines
Deal found 5/13$352
Sat 9/217:59 pmBOS - SEA
Nonstop6h 14mAlaska Airlines
Sat 9/289:29 pmSEA - BOS
Nonstop5h 15mAlaska Airlines
Deal found 5/13$357
Tue 9/107:59 pmBOS - SEA
Nonstop6h 14mAlaska Airlines
Sat 9/219:29 pmSEA - BOS
Nonstop5h 15mAlaska Airlines
Deal found 5/12$358
Sat 9/216:35 pmBOS - SEA
Nonstop6h 21mDelta
Thu 10/33:30 pmSEA - BOS
Nonstop5h 23mDelta
Deal found 5/13$362

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 2,633,403 searches. Data last updated May 14, 2024.
Book one of these great deals on flights from Boston to Seattle. Tip: verify your flight details before completing your reservation.
Fri 5/2411:30 amBOS - SEA
1 stop23h 10mMultiple Airlines
Tue 5/289:40 pmSEA - BOS
2 stops14h 33mMultiple Airlines
Deal found 5/13$334
Sun 5/266:10 amBOS - SEA
3 stops28h 45mMultiple Airlines
Sat 6/85:00 pmSEA - BOS
1 stop14h 22mMultiple Airlines
Deal found 5/12$335
Sun 5/266:10 amBOS - SEA
3 stops28h 45mMultiple Airlines
Sat 6/82:51 pmSEA - BOS
2 stops20h 58mMultiple Airlines
Deal found 5/12$336
Tue 5/2111:28 amBOS - SEA
2 stops24h 17mSpirit Airlines
Wed 5/229:40 pmSEA - BOS
2 stops23h 42mSpirit Airlines
Deal found 5/12$338
Sat 5/2511:28 amBOS - SEA
2 stops23h 12mMultiple Airlines
Wed 6/129:28 amSEA - BOS
3 stops22h 49mMultiple Airlines
Deal found 5/12$341
Wed 5/229:44 pmBOS - SEA
2 stops25h 45mSpirit Airlines
Wed 5/299:40 pmSEA - BOS
2 stops23h 42mSpirit Airlines
Deal found 5/12$344
Sat 5/254:01 pmBOS - SEA
1 stop8h 49mAmerican Airlines
Wed 6/125:10 amSEA - BOS
1 stop10h 25mAmerican Airlines
Deal found 5/12$346
Tue 5/215:45 amBOS - SEA
3 stops30h 00mSpirit Airlines
Wed 5/229:40 pmSEA - BOS
2 stops23h 42mSpirit Airlines
Deal found 5/12$356
Wed 5/229:44 pmBOS - SEA
2 stops25h 45mSpirit Airlines
Wed 5/299:40 pmSEA - BOS
3 stops33h 10mSpirit Airlines
Deal found 5/12$359

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 2,633,403 searches. Data last updated May 14, 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.
Wed 5/294:08 pmBOS - SEA
2 stops19h 37mSpirit Airlines
Deal found 5/12$95
Tue 6/1112:07 pmBOS - SEA
3 stops23h 25mSpirit Airlines
Deal found 5/12$105
Tue 6/1110:56 amBOS - SEA
2 stops24h 36mSpirit Airlines
Deal found 5/12$108
Tue 6/1112:07 pmBOS - SEA
3 stops23h 25mSpirit Airlines
Deal found 5/13$109
Tue 9/107:00 amBOS - SEA
1 stop16h 21mSpirit Airlines
Deal found 5/13$111
Wed 6/128:00 pmBOS - SEA
2 stops15h 32mSpirit Airlines
Deal found 5/13$112
Sat 9/147:00 amBOS - SEA
1 stop9h 58mSpirit Airlines
Deal found 5/13$115
Wed 5/296:10 amBOS - SEA
3 stops29h 35mSpirit Airlines
Deal found 5/12$117
Wed 6/52:26 pmBOS - SEA
2 stops21h 06mSpirit Airlines
Deal found 5/12$118

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 2,633,403 searches. Data last updated May 14, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$210 - $372

Route

Depart

Return

Price

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 5/29

2 stops19h 37m

Seattle/Tacoma Intl

Mon 6/3

2 stops23h 15m

$210

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 5/29

2 stops19h 37m

Seattle/Tacoma Intl

Wed 6/5

2 stops24h 16m

$223

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 6/4

3 stops25h 06m

Seattle/Tacoma Intl

Mon 6/10

2 stops35h 47m

$247

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Sat 8/31

1 stop8h 23m

Seattle/Tacoma Intl

Tue 9/10

1 stop7h 47m

$285

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Thu 7/11

1 stop8h 46m

Seattle/Tacoma Intl

Mon 7/15

1 stop7h 27m

$305

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Mon 6/3

1 stop8h 49m

Seattle/Tacoma Intl

Wed 6/5

1 stop7h 47m

$308

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 6/4

1 stop8h 27m

Seattle/Tacoma Intl

Thu 6/13

1 stop10h 11m

$326

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 6/4

Nonstop6h 17m

Seattle/Tacoma Intl

Tue 6/11

Nonstop5h 27m

$357

Boston Logan IntlSeattle/Tacoma Intl

BOS - SEA

BOSSEA

Boston Logan Intl

Fri 9/13

Nonstop6h 14m

Seattle/Tacoma Intl

Sat 9/21

Nonstop5h 15m

$372

Flights are sorted by cheapest first

Deals found on 5/12

When is the best time to 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 May 10, 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 30 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

When is the cheapest time 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 May 5, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Boston to Seattle flight should consider departing on Saturday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Seattle by month

Plan your trip from Boston to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from Boston to Seattle is currently $110 while a round-trip flight costs $293. Price data was last updated on May 12, 2024.

Currently, January is the cheapest month in which you can book a flight from Boston to Seattle (average of $247). Flying from Boston to Seattle in July is currently the most expensive (average of $407). 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

$247

February

$254

March

$288

April

$294

May

$318

June

$404

July

$407

August

$344

September

$278

October

$256

November

$258

December

$248

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

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 May 14, 2024.
To help decide which airline to fly from Boston to Seattle, see what other customers have to say about Spirit Airlines, American Airlines and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,144 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Overall

8.1

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

Alaska Airlines
8.1
Very good
9,144 reviews
Alaska Airlines
8.1
Very good
9,144 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Overall

8.1

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

Delta
8.0
Very good
10,736 reviews
Alaska Airlines
8.1
Very good
9,144 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Overall

8.1

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

JetBlue
7.6
Good
4,497 reviews
Alaska Airlines
8.1
Very good
9,144 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Overall

8.1

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

United Airlines
7.4
Good
10,980 reviews
Alaska Airlines
8.1
Very good
9,144 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Overall

8.1

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

American Airlines
7.3
Good
14,575 reviews
Alaska Airlines
8.1
Very good
9,144 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Overall

8.1

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

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 05m.

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

    Yes, there are multiple flights from Boston to Seattle for under $300. The cheapest flight booked recently is on Spirit Airlines for just $210, but on average you can expect to pay $241.

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

    Cheapflights has at least 20 direct flights from Boston to Seattle under $400. A good price for a nonstop flight from Boston to Seattle is less than $363.

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

    There are currently 20+ 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, Tuesday, Wednesday, Thursday, Friday, Saturday.

  • How popular is this Boston to Seattle flight route?

    Flights from Boston Logan Intl to Seattle/Tacoma Intl have been viewed 76 times in the past calendar month.

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

    21 flight departures from Boston to Seattle per day on average.
    Morning (6am - Noon) - 52% of flight departures
    Afternoon (Noon - 6pm) - 29% of flight departures
    Evening (6pm - Midnight) - 19% of flight departures

  • How long is the flight from Boston to Seattle?

    Departing from Boston to Seattle will take you 19h 37m. 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 ($210), offers the cheapest pricing from Boston to Seattle. This flight start at 41% 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 $95 on Spirit Airlines. Other airlines that offer cheap prices include American Airlines from $142 and United Airlines from $143 one-way.

  • 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: Undisclosed Carrier, American Airlines or Alaska Airlines.

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

    Consider China Eastern (97%), Delta (90%) or Virgin Atlantic (90%) 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 $1,083 for a flight from Boston to Seattle. The cheapest flight overall is $143 while the most popular route, (Boston Logan Intl - Seattle/Tacoma Intl) is currently priced at $231.

  • 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 5/13.

See more FAQs

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Fly from Boston to Seattle on these airlines
Choose from the following airlines for your flight from Boston to Seattle. Flights are based on user searches made on Cheapflights and were last updated on May 14, 2024.

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

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 2,633,403 searches. Data last updated May 14, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$115Average$297FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
JetBlueCheapest$129Average$377FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
DeltaCheapest$138Average$381FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$138Average$305FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$139Average$381FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Sun Country AirCheapest$173Average$340FlexibilityNo cancel feeOn-time83%
Search Sun Country Air flights
American AirlinesCheapest$203Average$483FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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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 May 14, 2024.
5%of flight departuresEarly morningMidnight to 6 am
54%of flight departuresMorning6 am to noon
37%of flight departuresAfternoonNoon to 6 pm
4%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 May 14, 2024.
Sunday22daily flights
Monday23daily flights
Tuesday25daily flights
Wednesday21daily flights
Thursday22daily flights
Friday25daily flights
Saturday20daily flights

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

When you search for this flight from Boston to Seattle, 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 Boston to Seattle?

Cheapflights helps you find that perfect flight to Seattle from Boston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston to Seattle flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Boston to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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