Cheap Flights from Seattle, WA to Boston, MA from $97

One way Round trip

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On Cheapflightsplus.com you will find 3 direct and 200 connecting flights from Seattle to Boston. You can compare airfare deals from 5 airlines and multiple travel sites from $97, book and save on cheap plane tickets and last minute offers. Also check out SEA-BOS flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Boston Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $97 (one-way), $166 (round-trip).

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Best Flights from Seattle to Boston Today

Take a look at the list of non stop flights and flights with layovers from Seattle to Boston with the lowest price of $97. The fastest direct flight takes 5h 7m and the fastest connecting – 7h 12m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $97 Find flight	07:00 Seattle Seattle-Tacoma Intl	15:13 Boston Logan	5h 13m	Alaska Airlines	AS306
from $129 Find flight	21:40 Seattle Seattle-Tacoma Intl	05:47+1 день Boston Logan	5h 7m	Alaska Airlines	AS424
from $202 Find flight	23:30 Seattle Seattle-Tacoma Intl	07:44+1 день Boston Logan	5h 14m	Alaska Airlines	AS536
from $98 Find flight	17:28 Seattle Seattle-Tacoma Intl	05:18+1 день Boston Logan	8h 50m layover 1h 20m - Las Vegas	Spirit Airlines	NK204 NK3924
from $99 Find flight	08:35 Seattle Seattle-Tacoma Intl	18:54 Boston Logan	7h 19m layover 1h 5m - Portland	Alaska Airlines	AS2184 AS358
from $118 Find flight	21:59 Seattle Seattle-Tacoma Intl	15:29+1 день Boston Logan	14h 30m layover 8h 6m - Portland	Alaska Airlines	AS955 AS358
from $132 Find flight	07:35 Seattle Seattle-Tacoma Intl	18:54 Boston Logan	8h 19m layover 2h 4m - Portland	Alaska Airlines	AS2114 AS358
from $147 Find flight	18:59 Seattle Seattle-Tacoma Intl	10:34+1 день Boston Logan	12h 35m layover 6h 28m - Minneapolis	Sun Country Airlines	SY286 SY251
from $149 Find flight	22:51 Seattle Seattle-Tacoma Intl	15:29+1 день Boston Logan	13h 38m layover 7h 17m - Portland	Alaska Airlines	AS957 AS358
from $157 Find flight	13:59 Seattle Seattle-Tacoma Intl	16:23+1 день Boston Logan	23h 24m layover 15h 29m - San Francisco	Alaska Airlines	AS1304 AS356
from $174 Find flight	16:23 Seattle Seattle-Tacoma Intl	04:53+1 день Boston Logan	9h 30m layover 1h 35m - San Francisco	United Airlines	UA737 UA2488
from $174 Find flight	14:00 Seattle Seattle-Tacoma Intl	04:53+1 день Boston Logan	11h 53m layover 3h 58m - San Francisco	United Airlines	UA375 UA2488
from $175 Find flight	09:25 Seattle Seattle-Tacoma Intl	22:08 Boston Logan	9h 43m layover 1h 51m - San Francisco	United Airlines	UA1960 UA354
from $119 Find flight	06:11 Seattle Seattle-Tacoma Intl	21:07 Boston Logan	11h 56m layover 1h 34m - Los Angeles 0h 55m - Baltimore	Spirit Airlines	NK1491 NK2074 NK2075
from $140 Find flight	14:16 Seattle Seattle-Tacoma Intl	15:13+1 день Boston Logan	21h 57m layover 7h 9m - Las Vegas 5h 49m - New Orleans	Spirit Airlines	NK414 NK1064 NK1375
from $163 Find flight	21:21 Seattle Seattle-Tacoma Intl	14:56+1 день Boston Logan	14h 35m layover 1h 6m - Las Vegas 4h 43m - Atlanta	Spirit Airlines	NK1456 NK331 NK1444

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on November 21, 2024

Flight Schedule Seattle (Washington) to Boston (Massachusetts)

Full flight schedule will help you in detecting at what time planes fly from Seattle to Boston. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
07:00 — 15:13	07:00 — 15:13 AS306 Alaska Airlines Seattle — Boston	5h 13m	Find flight from$97
21:40 — 05:47 +1 day	21:40 — 05:47 AS424 Alaska Airlines Seattle — Boston	5h 7m	Find flight from$129
23:30 — 07:44 +1 day	23:30 — 07:44 AS536 Alaska Airlines Seattle — Boston	5h 14m	Find flight from$202
07:35 — 18:54	07:35 — 08:29 AS2114 Alaska Airlines Seattle — Portland 2h 4m stop 10:33 — 18:54 AS358 Alaska Airlines Portland — Boston	8h 19m including layover	Find flight from$132
08:35 — 18:54	08:35 — 09:28 AS2184 Alaska Airlines Seattle — Portland 1h 5m stop 10:33 — 18:54 AS358 Alaska Airlines Portland — Boston	7h 19m including layover	Find flight from$99
09:20 — 21:43	09:20 — 11:39 UA1960 United Airlines Seattle — San Francisco 1h 21m stop 13:00 — 21:43 UA2851 United Airlines San Francisco — Boston	9h 23m including layover	Find flight from$191
09:25 — 22:08	09:25 — 11:39 UA1960 United Airlines Seattle — San Francisco 1h 51m stop 13:30 — 22:08 UA354 United Airlines San Francisco — Boston	9h 43m including layover	Find flight from$175
10:00 — 15:29 +1 day	10:00 — 11:00 AS2213 Alaska Airlines Seattle — Portland 20h stop 07:00 — 15:29 AS358 Alaska Airlines Portland — Boston	26h 29m including layover	Find flight from$203
11:05 — 21:59	11:05 — 17:10 UA747 United Airlines Seattle — Chicago 1h 20m stop 18:30 — 21:59 UA1989 United Airlines Chicago — Boston	7h 54m including layover	Find flight from$191
11:36 — 15:29 +1 day	11:27 — 12:26 AS1039 Alaska Airlines Seattle — Portland 18h 25m stop 09:08 — 17:25 AS358 Alaska Airlines Portland — Boston	24h 53m including layover	Find flight from$203
12:35 — 23:37	12:35 — 16:17 UA1483 United Airlines Seattle — Denver 1h 21m stop 17:38 — 23:37 UA1510 United Airlines Denver — Boston	8h 2m including layover	Find flight from$191
13:32 — 15:29 +1 day	13:35 — 14:27 AS2354 Alaska Airlines Seattle — Portland 16h 38m stop 09:08 — 17:25 AS358 Alaska Airlines Portland — Boston	22h 57m including layover	Find flight from$225
13:59 — 16:23 +1 day	13:59 — 16:16 AS1304 Alaska Airlines Seattle — San Francisco 15h 29m stop 07:45 — 16:23 AS356 Alaska Airlines San Francisco — Boston	23h 24m including layover	Find flight from$157
14:00 — 04:53 +1 day	14:00 — 16:17 UA375 United Airlines Seattle — San Francisco 3h 58m stop 20:15 — 04:53 UA2488 United Airlines San Francisco — Boston	11h 53m including layover	Find flight from$174
16:23 — 04:53 +1 day	16:23 — 18:40 UA737 United Airlines Seattle — San Francisco 1h 35m stop 20:15 — 04:53 UA2488 United Airlines San Francisco — Boston	9h 30m including layover	Find flight from$174
17:28 — 05:18 +1 day	17:28 — 19:55 NK204 Spirit Airlines Seattle — Las Vegas 1h 20m stop 21:15 — 05:18 NK3924 Spirit Airlines Las Vegas — Boston	8h 50m including layover	Find flight from$98
18:00 — 05:56 +1 day	18:00 — 21:44 UA1279 United Airlines Seattle — Denver 2h 15m stop 23:59 — 05:56 UA2610 United Airlines Denver — Boston	8h 56m including layover	Find flight from$192
18:59 — 10:34 +1 day	18:39 — 23:59 SY286 Sun Country Airlines Seattle — Minneapolis 6h 28m stop 06:54 — 10:41 SY251 Sun Country Airlines Minneapolis — Boston	12h 35m including layover	Find flight from$147
19:32 — 07:57 +1 day	16:23 — 18:40 UA737 United Airlines Seattle — San Francisco 1h 30m stop 23:00 — 07:38 UA1665 United Airlines San Francisco — Boston	9h 25m including layover	Find flight from$191
19:52 — 15:29 +1 day	19:59 — 20:55 AS958 Alaska Airlines Seattle — Portland 10h 14m stop 10:33 — 18:54 AS358 Alaska Airlines Portland — Boston	16h 37m including layover	Find flight from$192
20:49 — 16:23 +1 day	19:58 — 22:07 AS1014 Alaska Airlines Seattle — San Francisco 8h 41m stop 07:40 — 16:20 AS356 Alaska Airlines San Francisco — Boston	16h 34m including layover	Find flight from$213
20:59 — 15:29 +1 day	20:59 — 21:53 AS123 Alaska Airlines Seattle — Portland 9h 7m stop 07:00 — 15:29 AS358 Alaska Airlines Portland — Boston	15h 30m including layover	Find flight from$203
21:59 — 15:29 +1 day	21:59 — 22:55 AS955 Alaska Airlines Seattle — Portland 8h 6m stop 10:33 — 18:54 AS358 Alaska Airlines Portland — Boston	14h 30m including layover	Find flight from$118
22:51 — 15:29 +1 day	22:50 — 23:44 AS957 Alaska Airlines Seattle — Portland 7h 17m stop 10:33 — 18:54 AS358 Alaska Airlines Portland — Boston	13h 38m including layover	Find flight from$149
23:17 — 10:16 +1 day	23:17 — 07:35 UA341 United Airlines Seattle — Newark 1h 25m stop 09:00 — 10:16 UA1891 United Airlines Newark — Boston	7h 59m including layover	Find flight from$192
23:59 — 10:56 +1 day	23:59 — 06:00 UA2019 United Airlines Seattle — Chicago 1h 30m stop 07:30 — 10:56 UA1083 United Airlines Chicago — Boston	7h 57m including layover	Find flight from$192
05:15 — 19:35	05:15 — 08:00 NK1491 Spirit Airlines Seattle — Los Angeles 42m stop 08:42 — 16:08 NK303 Spirit Airlines Los Angeles — Detroit 1h 30m stop 17:38 — 19:35 NK2329 Spirit Airlines Detroit — Boston	11h 20m including layover	Find flight from$205
05:45 — 06:48 +1 day	05:45 — 08:36 NK1491 Spirit Airlines Seattle — Los Angeles 1h 41m stop 10:22 — 18:20 NK2074 Spirit Airlines Los Angeles — Baltimore 11h 5m stop 05:28 — 06:55 NK523 Spirit Airlines Baltimore — Boston	22h 3m including layover	Find flight from$161
06:11 — 21:07	05:45 — 08:36 NK1491 Spirit Airlines Seattle — Los Angeles 1h 34m stop 10:22 — 18:20 NK2074 Spirit Airlines Los Angeles — Baltimore 55m stop 19:32 — 21:02 NK2075 Spirit Airlines Baltimore — Boston	11h 56m including layover	Find flight from$119
12:50 — 10:41 +1 day	12:50 — 15:24 NK414 Spirit Airlines Seattle — Las Vegas 3h 12m stop 18:15 — 23:24 SY108 Sun Country Airlines Las Vegas — Minneapolis 7h 9m stop 06:54 — 10:41 SY251 Sun Country Airlines Minneapolis — Boston	18h 51m including layover	Find flight from$201
14:16 — 15:13 +1 day	14:16 — 16:50 NK414 Spirit Airlines Seattle — Las Vegas 7h 9m stop 23:59 — 05:05 NK1064 Spirit Airlines Las Vegas — New Orleans 5h 49m stop 10:54 — 15:13 NK1375 Spirit Airlines New Orleans — Boston	21h 57m including layover	Find flight from$140
16:00 — 14:56 +1 day	16:00 — 18:31 NK414 Spirit Airlines Seattle — Las Vegas 6h 25m stop 00:56 — 07:44 NK331 Spirit Airlines Las Vegas — Atlanta 4h 43m stop 12:27 — 14:56 NK1444 Spirit Airlines Atlanta — Boston	19h 56m including layover	Find flight from$183
17:28 — 13:23 +1 day	17:28 — 19:55 NK204 Spirit Airlines Seattle — Las Vegas 4h stop 23:55 — 07:23 NK1853 Spirit Airlines Las Vegas — Orlando 2h 57m stop 10:20 — 13:23 NK501 Spirit Airlines Orlando — Boston	16h 55m including layover	Find flight from$131

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on November 21, 2024

Flight Information

Below we will explain in detail what the flights cost on the destination from Seattle to Boston depends on and how to choose the most interesting flight option for you.

Distance between Seattle and Boston is 4005 miles. Time difference between the cities is 3h. Airplanes depart 05:00 to 23:59 from 3 Seattle airports and arrive 05:00 to 23:59 to 4 Boston airports. Average flight time is 5h 13m.

The fastest flight 5h 7m
Average flight time 5h 13m
The earliest flight 05:00
The latest flight 23:59
Distance 2489 ml

The cheapest months to travel to Boston are december (from 97 $), november (from 137 $), january (from 140 $).

The most expensive months are february (from 191 $), january (from 140 $), november (from 137 $).

What is the lowest airfare Seattle to Boston?

The cheapest plane ticket found by our users is $97. This airfare is for economy class on one-way AS306 flight by Alaska Airlines for December 12, 2024 which leaves Seattle-Tacoma Intl in Seattle at 07:00 am and arrives at Boston Logan at 15:13.

Economy class

$97

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Business class

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First class

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Popular Airlines on the Route

The flight Seattle — Boston is served by 5 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 41 departures per week at the price of from $ 97 . And the most expensive tickets are offered by Turkish Airlines airline - from $ 2104.

Direct flights

There are 3 nonstop flights on the route. The fastest direct flight is AS424 by Alaska Airlines takes 5h 7m and the cheapest is AS306 by Alaska Airlines for $97.

AS - Alaska Airlines

from $97

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Connecting Flights

There are 200 flights with layovers on the route. The fastest connecting flight is UA1329 by United Airlines takes 7h 12m and the cheapest is AS306 by Alaska Airlines for $98.

AS - Alaska Airlines

from $99

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SY - Sun Country Airlines

from $147

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UA - United Airlines

from $174

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NK - Spirit Airlines

from $98

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TK - Turkish Airlines

from $1218

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Airports

You can fly from Seattle to Boston from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

Boeing Field International Airport-BFI

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Seattle-Tacoma Intl-SEA

from $97
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Kenmore Air Harbor SPB-LKE

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Boston airports

Boston City Heliport-JBC

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Boston RT128 Rail-ZRU

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Boston South Rail-ZTO

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Logan-BOS

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Airplanes

There are flights to Boston from Seattle by 5 airlines that use 2 aircraft brands. They range from huge modern airplanes to small-sized.

Boeing 737-900

from $382

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Boeing 737-800

from $435

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Top Domestic Destinations from Seattle

You may also consider searching for discounted plane tickets to some other popular places from Seattle within United States.

Seattle — Spokane

from $65

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Seattle — Phoenix

from $67

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Seattle — Los Angeles

from $53

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Seattle — Houston

from $59

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Seattle — Charlotte

from $63

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Seattle — Miami

from $66

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Seattle — Milwaukee

from $75

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Seattle — Tucson

from $79

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Seattle — Denver

from $243

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Seattle — San Antonio

from $54

Find

Top International Destinations from Seattle

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Seattle — Frankfurt

from $60

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Seattle — Sydney

from $56

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Seattle — Dublin

from $76

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Seattle — London

from $70

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Seattle — Berlin

from $67

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Seattle — Rome

from $59

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Seattle — Manila

from $56

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Seattle — Barcelona

from $78

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Seattle — Dubai

from $79

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Seattle — Venice

from $53

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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