$60+ Cheap flights from Seattle to Boston (SEA - BOS)

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 8/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — BOS
Jul 16 — Jul 231

The best prices from Seattle/Tacoma Intl to Boston Logan Intl are usually found in January or February, booked 45 days in advance, depart on a Wednesday or Thursday and return on a Friday

Cheap flight deals from Seattle to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 11, 2024.

Popular in

July

Cheapest in

January

Round-trip from

$163
(FareScan)

One-way from

$60
(FareScan)
High demand for flights, 27% potential price rise
Best time to find cheap flights, 40% potential price drop
From Seattle/Tacoma Intl to Boston Logan Intl
One-way flight from Seattle/Tacoma Intl to Boston Logan Intl

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

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

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 46 days in advance, which can save you up to 46% on flights from Seattle to Boston compared to booking the week you need them. Waiting 46 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 $348. For sooner than that we have options available in the next 3 days from $609.

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

January is one of the best times of the year to fly to Boston from Seattle. Prices for January average $377 per person but you can even find prices for as low as $99. The most expensive prices can be found in the month of July. Opting for a January flight can save you 37% on your journey compared to booking in July

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

Unlike in the morning, when flights are generally more expensive, you can save up to 23% on flights from Seattle to Boston by exploring options for tickets in the afternoon.

Cheap Seattle to Boston flights in July & August 2024

Find cheap flight options from Seattle to Boston specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,800,118 searches. Prices were last updated on July 11, 2024.
These are some of the best deals we've found on flights to Boston in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/36:29 pmSEA - BOS
2 stops16h 37mSpirit Airlines
Sun 9/810:38 pmBOS - SEA
3 stops28h 32mSpirit Airlines
Deal found 7/10$302
This FareScan deal was found by Cheapflights users on 7/11. 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 7/229:21 pmSEA - BOS
2 stops14h 59mSpirit Airlines
Mon 7/2910:00 pmBOS - SEA
2 stops21h 15mSpirit Airlines
Deal found 7/11$303
This mytrip.com deal was found by Cheapflights users on 7/11. 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 8/183:03 pmSEA - BOS
3 stops20h 49mSpirit Airlines
Fri 9/134:59 pmBOS - SEA
2 stops34h 11mSpirit Airlines
Deal found 7/11$304
This mytrip.com deal was found by Cheapflights users on 7/11. 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.
Mon 8/1910:59 amSEA - BOS
3 stops22h 21mSpirit Airlines
Sat 9/216:30 amBOS - SEA
2 stops20h 40mSpirit Airlines
Deal found 7/11$305
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/29:44 pmSEA - BOS
3 stops23h 15mSpirit Airlines
Fri 8/233:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Deal found 7/10$306
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/305:10 amSEA - BOS
3 stops16h 43mSpirit Airlines
Fri 8/233:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Deal found 7/10$307
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/811:59 pmSEA - BOS
2 stops15h 07mMultiple Airlines
Wed 8/213:42 pmBOS - SEA
1 stop11h 28mMultiple Airlines
Deal found 7/10$308
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/55:10 amSEA - BOS
3 stops16h 49mSpirit Airlines
Fri 8/233:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Deal found 7/10$309
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/315:10 amSEA - BOS
2 stops23h 33mSpirit Airlines
Tue 8/135:34 pmBOS - SEA
3 stops33h 36mSpirit Airlines
Deal found 7/10$310

Seattle to Boston 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Boston in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,800,118 searches. Data last updated July 11, 2024.
These are some of the best deals we've found on flights to Boston in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
This JetBlue deal was found by Cheapflights users on 7/11. 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 10/311:59 pmSEA - BOS
1 stop10h 15mJetBlue
Mon 10/75:45 pmBOS - SEA
Nonstop6h 21mJetBlue
Deal found 7/11$301
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/36:29 pmSEA - BOS
2 stops16h 37mSpirit Airlines
Sun 9/810:38 pmBOS - SEA
3 stops28h 32mSpirit Airlines
Deal found 7/10$302
This FareScan deal was found by Cheapflights users on 7/11. 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 7/229:21 pmSEA - BOS
2 stops14h 59mSpirit Airlines
Mon 7/2910:00 pmBOS - SEA
2 stops21h 15mSpirit Airlines
Deal found 7/11$303
This mytrip.com deal was found by Cheapflights users on 7/11. 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 8/183:03 pmSEA - BOS
3 stops20h 49mSpirit Airlines
Fri 9/134:59 pmBOS - SEA
2 stops34h 11mSpirit Airlines
Deal found 7/11$304
This mytrip.com deal was found by Cheapflights users on 7/11. 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.
Mon 8/1910:59 amSEA - BOS
3 stops22h 21mSpirit Airlines
Sat 9/216:30 amBOS - SEA
2 stops20h 40mSpirit Airlines
Deal found 7/11$305
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/29:44 pmSEA - BOS
3 stops23h 15mSpirit Airlines
Fri 8/233:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Deal found 7/10$306
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/305:10 amSEA - BOS
3 stops16h 43mSpirit Airlines
Fri 8/233:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Deal found 7/10$307
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/811:59 pmSEA - BOS
2 stops15h 07mMultiple Airlines
Wed 8/213:42 pmBOS - SEA
1 stop11h 28mMultiple Airlines
Deal found 7/10$308
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/55:10 amSEA - BOS
3 stops16h 49mSpirit Airlines
Fri 8/233:42 pmBOS - SEA
1 stop11h 28mSpirit Airlines
Deal found 7/10$309

Seattle to Boston flights leaving soon

Find last-minute flight options from Seattle to Boston for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,800,118 searches. Data last updated July 11, 2024.
Users seeking a last-minute flight from Seattle to Boston should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
This FareScan deal was found by Cheapflights users on 7/11. 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.
Fri 7/195:10 amSEA - BOS
2 stops23h 33mSpirit Airlines
Fri 7/2610:00 pmBOS - SEA
2 stops21h 15mSpirit Airlines
Deal found 7/11$297
This mytrip.com deal was found by Cheapflights users on 7/9. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/209:13 pmSEA - BOS
2 stops20h 12mSpirit Airlines
Sun 7/286:35 amBOS - SEA
2 stops21h 00mSpirit Airlines
Deal found 7/9$308
This mytrip.com deal was found by Cheapflights users on 7/9. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/199:44 pmSEA - BOS
2 stops23h 15mSpirit Airlines
Thu 7/255:34 pmBOS - SEA
2 stops29h 56mSpirit Airlines
Deal found 7/9$310
This mytrip.com deal was found by Cheapflights users on 7/9. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/168:54 pmSEA - BOS
2 stops21h 20mSpirit Airlines
Sat 7/206:50 amBOS - SEA
3 stops30h 49mSpirit Airlines
Deal found 7/9$318
This FareScan deal was found by Cheapflights users on 7/10. 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.
Fri 7/195:10 amSEA - BOS
2 stops23h 33mSpirit Airlines
Sun 7/219:23 pmBOS - SEA
2 stops30h 12mSpirit Airlines
Deal found 7/10$319
This mytrip.com deal was found by Cheapflights users on 7/9. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/185:10 amSEA - BOS
3 stops34h 06mSpirit Airlines
Tue 7/3010:14 pmBOS - SEA
3 stops29h 21mSpirit Airlines
Deal found 7/9$321
This mytrip.com deal was found by Cheapflights users on 7/10. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/199:44 pmSEA - BOS
2 stops23h 15mSpirit Airlines
Wed 7/2410:00 pmBOS - SEA
3 stops29h 35mSpirit Airlines
Deal found 7/10$324
This mytrip.com deal was found by Cheapflights users on 7/9. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/185:10 amSEA - BOS
3 stops34h 06mSpirit Airlines
Fri 8/24:10 pmBOS - SEA
2 stops27h 05mSpirit Airlines
Deal found 7/9$325
This mytrip.com deal was found by Cheapflights users on 7/9. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/185:10 amSEA - BOS
3 stops34h 06mSpirit Airlines
Wed 7/318:43 amBOS - SEA
2 stops18h 52mSpirit Airlines
Deal found 7/9$326

One-way flights to Boston from Seattle

Search for one-way flight options from Seattle to Boston. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,800,118 searches. Data last updated July 11, 2024.
Take a look at some of the one-way flights we've detected from Seattle to Boston. Those seeking round-trip flights from Seattle to Boston should utilize the search form at the the top of the page.
This FareScan deal was found by Cheapflights users on 7/11. 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 8/203:03 pmSEA - BOS
2 stops12h 27mSpirit Airlines
Deal found 7/11$60
This CheapOair deal was found by Cheapflights users on 7/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/203:03 pmSEA - BOS
2 stops12h 27mSpirit Airlines
Deal found 7/10$86
This FareScan deal was found by Cheapflights users on 7/10. 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.
Tue 8/203:03 pmSEA - BOS
2 stops12h 27mSpirit Airlines
Deal found 7/10$88
This Booking.com deal was found by Cheapflights users on 7/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/203:03 pmSEA - BOS
2 stops12h 27mSpirit Airlines
Deal found 7/10$89
This FareScan deal was found by Cheapflights users on 7/10. 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.
Tue 8/205:45 amSEA - BOS
1 stop21h 45mSpirit Airlines
Deal found 7/10$93
This Delta deal was found by Cheapflights users on 7/10. 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.
Mon 9/911:22 pmSEA - BOS
Nonstop5h 33mDelta
Deal found 7/10$99
This FlightHub deal was found by Cheapflights users on 7/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/285:45 amSEA - BOS
2 stops15h 42mSpirit Airlines
Deal found 7/10$103
This Spirit deal was found by Cheapflights users on 7/10. 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 Spirit is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/245:45 amSEA - BOS
2 stops15h 42mSpirit Airlines
Deal found 7/10$104
This FareScan deal was found by Cheapflights users on 7/10. 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 8/195:45 amSEA - BOS
1 stop21h 45mSpirit Airlines
Deal found 7/10$105

Find flights from Seattle to Boston within your budget

Customize your flight search to find flights from Seattle to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,800,118 searches. Data last updated July 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$163 - $300

Route

Depart

Return

Price

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 8/14

1 stop21h 45m

Boston Logan Intl

Tue 8/20

2 stops29h 30m

$163

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 8/14

1 stop21h 45m

Boston Logan Intl

Tue 8/20

1 stop11h 28m

$169

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 9/3

2 stops12h 27m

Boston Logan Intl

Wed 9/11

Nonstop6h 14m

$187

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 8/20

2 stops12h 27m

Boston Logan Intl

Sat 9/14

Nonstop6h 14m

$190

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 9/9

Nonstop5h 33m

Boston Logan Intl

Wed 9/11

Nonstop6h 23m

$197

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 9/23

1 stop10h 01m

Boston Logan Intl

Sat 9/28

1 stop9h 41m

$231

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 9/6

Nonstop5h 15m

Boston Logan Intl

Mon 9/23

Nonstop6h 14m

$252

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 9/26

1 stop7h 15m

Boston Logan Intl

Sat 9/28

Nonstop6h 21m

$286

Seattle/Tacoma IntlBoston Logan Intl

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 8/30

1 stop7h 31m

Boston Logan Intl

Thu 9/26

1 stop8h 30m

$300

Flights are sorted by cheapest first

Deals found on 7/11

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Boston. Price data was last updated on July 5, 2024.
Booking 45 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Boston. Price data was last updated on July 7, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Boston flight should consider departing on Tuesday at noon when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Seattle to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Seattle 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 Boston by month

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

BOS

Temperature

30.2 - 73.4 °F

If weather is an important factor for your trip to Boston, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated July 11, 2024.
Read reviews from past customers who have flown Delta, Spirit Airlines and Sun Country Air from Seattle to Boston. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,367 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Reviews

1 / 10

There was no announcement to close your windows and were turning out the lights!.

8.1
Very good
9,367 reviews
8.1
Very good
9,367 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Reviews

1 / 10

There was no announcement to close your windows and were turning out the lights!.

8.0
Very good
9,842 reviews
8.1
Very good
9,367 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Reviews

1 / 10

There was no announcement to close your windows and were turning out the lights!.

7.6
Good
4,082 reviews
8.1
Very good
9,367 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Reviews

1 / 10

There was no announcement to close your windows and were turning out the lights!.

7.4
Good
10,000 reviews
8.1
Very good
9,367 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Reviews

1 / 10

There was no announcement to close your windows and were turning out the lights!.

7.3
Good
10,000 reviews
8.1
Very good
9,367 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Reviews

1 / 10

There was no announcement to close your windows and were turning out the lights!.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Seattle to Boston?

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

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

    Yes, there are multiple flights from Seattle to Boston for under $200. The cheapest flight booked recently is on Spirit Airlines for just $163, but on average you can expect to pay $187.

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

    Cheapflights has at least 20 direct flights from Seattle to Boston under $200. A good price for a nonstop flight from Seattle to Boston is less than $273.

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

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

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

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

  • How popular is this Seattle to Boston flight route?

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

    13 flight departures from Seattle to Boston per day on average.
    Early Morning (Midnight to 6am) - 23% of flight departures
    Morning (6am - Noon) - 54% of flight departures
    Afternoon (Noon - 6pm) - 8% of flight departures
    Evening (6pm - Midnight) - 15% of flight departures

  • How long is the flight from Seattle to Boston?

    Airlines like Spirit Airlines and Delta fly from Seattle to Boston in about 5h 33m. The time it takes to get you to your destination can typically vary by up to 16h 12m. There are 2502 mi between Seattle and Boston. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Our cheapest airline available from Seattle to Boston is Spirit Airlines. Our recent data shows that you can find tickets from as low as $163 on this airline. An additional option worth looking into is Delta, starting at $197. Spirit Airlines is currently priced 56% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $60. Users have also found prices from $99 and $109 on Delta and American Airlines, respectively.

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

    Before booking your flight to Boston from Seattle, check out the most reliable airlines to get you to your destination on time: LATAM Airlines (100%), Finnair (100%), Delta( 91%).

  • What are the cheapest flights from Seattle to Boston?

    Looking at all options, your cheapest flight can be booked for $163. While the most popular route (Seattle/Tacoma Intl - Boston Logan Intl) can be booked for $179 on average our data indicates $938 when flying from Seattle to Boston.

  • What does SEA to BOS mean?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    The Seattle to Boston flight deals you see on this page were last updated on 7/11.

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Boston (average of $218). Flying from Seattle to Boston in July is currently the most expensive (average of $323). 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 Seattle to Boston

Discover the top 7 airlines that operate flights from Seattle to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,800,118 searches. Data last updated July 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$126Average$256FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$129Average$371FlexibilityNo cancel feeOn-time62%
DeltaCheapest$139Average$402FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$139Average$416FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$167Average$379FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$176Average$393FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$236Average$367FlexibilityNo cancel feeOn-time71%

Search flights from Seattle to Boston by cabin class

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

Hourly flight availability from Seattle to Boston

Find hourly flight availability from Seattle to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 11, 2024.
8%of flight departuresEarly morningMidnight to 6 am
27%of flight departuresMorning6 am to noon
35%of flight departuresAfternoonNoon to 6 pm
30%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Seattle to Boston

Explore weekly flight availability from Seattle to Boston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 11, 2024.
Sunday21daily flights
Monday23daily flights
Tuesday23daily flights
Wednesday22daily flights
Thursday24daily flights
Friday22daily flights
Saturday20daily flights