Cheap Flights from Seattle, WA to Boston, MA from $87

One way Round trip

Adults

Children under 12

Infants under 2 without place

Economy

Business

First

done

Return flight: Boston – Seattle

Page navigation

Price Calendar Cheap Flights Flights Schedule

On Cheapflightsplus.com you will find 9 direct and 576 connecting flights from Seattle to Boston. You can compare airfare deals from 9 airlines and multiple travel sites from $87, 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: $87 (one-way), $149 (round-trip).

Direct flights

Check to choose departure date Check to choose departure date

Check prices for return flight

Find flights

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 $87. The fastest direct flight takes 5h 7m and the fastest connecting – 6h 50m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $87 Find flight	11:40 Seattle Seattle-Tacoma Intl	20:05 Boston Logan	5h 25m	JetBlue	B6498
from $108 Find flight	07:00 Seattle Seattle-Tacoma Intl	15:13 Boston Logan	5h 13m	Alaska Airlines	AS306
from $143 Find flight	21:40 Seattle Seattle-Tacoma Intl	05:47+1 день Boston Logan	5h 7m	Alaska Airlines	AS424
from $148 Find flight	23:29 Seattle Seattle-Tacoma Intl	07:55+1 день Boston Logan	5h 26m	Delta Air Lines Inc.	DL473
from $148 Find flight	15:49 Seattle Seattle-Tacoma Intl	23:59 Boston Logan	5h 10m	Alaska Airlines	AS460
from $148 Find flight	07:30 Seattle Seattle-Tacoma Intl	16:02 Boston Logan	5h 32m	Delta Air Lines Inc.	DL459
from $209 Find flight	15:49 Seattle Seattle-Tacoma Intl	23:59 Boston Logan	5h 10m	American Airlines	AA7432
from $224 Find flight	23:30 Seattle Seattle-Tacoma Intl	07:44+1 день Boston Logan	5h 14m	Alaska Airlines	AS536
from $109 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 $110 Find flight	08:35 Seattle Seattle-Tacoma Intl	18:54 Boston Logan	7h 19m layover 1h 5m - Portland	Alaska Airlines	AS2184 AS358
from $130 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 $146 Find flight	07:35 Seattle Seattle-Tacoma Intl	18:54 Boston Logan	8h 19m layover 2h 4m - Portland	Alaska Airlines	AS2114 AS358
from $149 Find flight	11:40 Seattle Seattle-Tacoma Intl	23:52 Boston Logan	9h 12m layover 1h 23m - Phoenix	American Airlines	AA5004 AA567
from $149 Find flight	06:16 Seattle Seattle-Tacoma Intl	20:23 Boston Logan	11h 7m layover 3h 23m - Phoenix	American Airlines	AA4864 AA2059
from $132 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 $148 Find flight	23:59 Seattle Seattle-Tacoma Intl	15:05+1 день Boston Logan	12h 6m layover 2h 21m - Charlotte 1h 53m - Philadelphia	American Airlines	AA2793 AA1714 AA1453

Show all tickets

*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on April 22, 2025

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$108
07:30 — 16:02	07:30 — 16:02 DL459 Delta Air Lines Inc. Seattle — Boston	5h 32m	Find flight from$148
10:39 — 18:59	10:39 — 18:59 AA7487 American Airlines Seattle — Boston	5h 20m	Find flight from$209
11:40 — 20:05	11:40 — 20:05 B6498 JetBlue Seattle — Boston	5h 25m	Find flight from$87
15:49 — 23:59	15:49 — 23:59 AS460 Alaska Airlines Seattle — Boston	5h 10m	Find flight from$148
15:49 — 23:59	15:49 — 23:59 AA7432 American Airlines Seattle — Boston	5h 10m	Find flight from$209
21:40 — 05:47 +1 day	21:40 — 05:47 AS424 Alaska Airlines Seattle — Boston	5h 7m	Find flight from$143
23:29 — 07:55 +1 day	23:29 — 07:55 DL473 Delta Air Lines Inc. Seattle — Boston	5h 26m	Find flight from$148
23:30 — 07:44 +1 day	23:30 — 07:44 AS536 Alaska Airlines Seattle — Boston	5h 14m	Find flight from$224
00:25 — 11:23	00:25 — 06:29 AA2818 American Airlines Seattle — Chicago 1h 41m stop 08:10 — 11:23 AA314 American Airlines Chicago — Boston	7h 58m including layover	Find flight from$207
05:36 — 19:28	05:36 — 07:50 UA1954 United Airlines Seattle — San Francisco 3h stop 10:50 — 19:28 UA2259 United Airlines San Francisco — Boston	10h 52m including layover	Find flight from$196
06:16 — 20:23	06:16 — 10:15 AA4864 American Airlines Seattle — Phoenix 3h 23m stop 13:38 — 20:23 AA2059 American Airlines Phoenix — Boston	11h 7m including layover	Find flight from$149
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$146
08:05 — 18:47	08:05 — 16:03 UA2855 United Airlines Seattle — Washington D.C. 1h 7m stop 17:10 — 18:47 UA688 United Airlines Washington D.C. — Boston	7h 42m including layover	Find flight from$187
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$110
09:19 — 23:39	09:19 — 13:04 F93406 Frontier Airlines Seattle — Denver 4h 43m stop 17:47 — 23:39 UA2292 United Airlines Denver — Boston	11h 20m including layover	Find flight from$191
09:19 — 05:51 +1 day	09:19 — 13:04 F93406 Frontier Airlines Seattle — Denver 10h 55m stop 23:59 — 05:51 UA2610 United Airlines Denver — Boston	17h 32m including layover	Find flight from$191
11:40 — 23:52	11:40 — 15:45 AA5004 American Airlines Seattle — Phoenix 1h 23m stop 17:08 — 23:52 AA567 American Airlines Phoenix — Boston	9h 12m including layover	Find flight from$149
12:30 — 23:39	12:30 — 16:14 UA431 United Airlines Seattle — Denver 1h 33m stop 17:47 — 23:39 UA2292 United Airlines Denver — Boston	8h 9m including layover	Find flight from$202
12:47 — 23:59	12:47 — 20:45 UA2275 United Airlines Seattle — Washington D.C. 1h 37m stop 22:22 — 23:59 UA755 United Airlines Washington D.C. — Boston	8h 12m including layover	Find flight from$152
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$174
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$193
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$193
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$109
18:20 — 08:03 +1 day	18:20 — 20:37 UA436 United Airlines Seattle — San Francisco 2h 48m stop 23:25 — 08:03 UA2495 United Airlines San Francisco — Boston	10h 43m including layover	Find flight from$152
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$163
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$165
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$130
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$165
00:25 — 15:05	00:25 — 06:29 AA2818 American Airlines Seattle — Chicago 3h 26m stop 09:55 — 12:51 AA2098 American Airlines Chicago — Philadelphia 49m stop 13:40 — 15:05 AA1453 American Airlines Philadelphia — Boston	11h 40m including layover	Find flight from$152
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$166
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$132
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$155
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$202
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$145
23:59 — 15:05 +1 day	23:59 — 07:54 AA2793 American Airlines Seattle — Charlotte 2h 21m stop 10:15 — 11:47 AA1714 American Airlines Charlotte — Philadelphia 1h 53m stop 13:40 — 15:05 AA1453 American Airlines Philadelphia — Boston	12h 6m including layover	Find flight from$148

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

*Departure and arrival times - local. Updated on April 22, 2025

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 00:25 to 23:59 from 3 Seattle airports and arrive 00:25 to 23:59 to 4 Boston airports. Average flight time is 5h 14m.

The fastest flight 5h 7m
Average flight time 5h 14m
The earliest flight 00:25
The latest flight 23:59
Distance 2489 ml

The cheapest months to travel to Boston are november (from 87 $), december (from 108 $), january (from 155 $).

The most expensive months are february (from 212 $), january (from 155 $), december (from 108 $).

What is the lowest airfare Seattle to Boston?

The cheapest plane ticket found by our users is $87. This airfare is for economy class on one-way B6498 flight by JetBlue for November 12, 2024 which leaves Seattle-Tacoma Intl in Seattle at 11:40 am and arrives at Boston Logan at 20:05.

Economy class

$87

Find

Business class

Find

First class

Find

Popular Airlines on the Route

The flight Seattle — Boston is served by 9 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by JetBlue - 1 departures per week at the price of from $ 87 . And the most expensive tickets are offered by Turkish Airlines airline - from $ 2329.

Direct flights

There are 9 nonstop flights on the route. The fastest direct flight is AS424 by Alaska Airlines takes 5h 7m and the cheapest is B6498 by JetBlue for $87.

B6 - JetBlue

from $87

Find
DL - Delta Air Lines Inc.

from $148

Find
AA - American Airlines

from $209

Find
AS - Alaska Airlines

from $108

Find

See more direct flights

Connecting Flights

There are 576 flights with layovers on the route. The fastest connecting flight is DL812 by Delta Air Lines Inc. takes 6h 50m and the cheapest is B6498 by JetBlue for $109.

DL - Delta Air Lines Inc.

from $221

Find
AA - American Airlines

from $148

Find
AS - Alaska Airlines

from $110

Find
F9 - Frontier Airlines

from $191

Find
SY - Sun Country Airlines

from $163

Find
TK - Turkish Airlines

from $1348

Find
UA - United Airlines

from $152

Find
NK - Spirit Airlines

from $109

Find

See more connecting flights

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

Find
Seattle-Tacoma Intl-SEA

from $87
Find
Kenmore Air Harbor SPB-LKE

Find

Boston airports

Boston City Heliport-JBC

Find
Boston RT128 Rail-ZRU

Find
Boston South Rail-ZTO

Find
Logan-BOS

Find

Airplanes

There are flights to Boston from Seattle by 9 airlines that use 10 aircraft brands. They range from huge modern airplanes to small-sized.

Airbus A318/319/320/321

from $87

Find
Airbus A321

from $148

Find
Canadair Regional Jet 700

from $149

Find
Embraer 175 (short wing)

from $149

Find
Boeing 737-800

from $152

Find
Airbus A320

from $202

Find
Airbus A319

from $202

Find
Boeing 737-100/200

from $209

Find
Boeing 737

from $210

Find
Boeing 737-900

from $237

Find

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 — Washington D.C.

from $78

Find
Seattle — Las Vegas

from $62

Find
Seattle — New York

from $180

Find
Seattle — Chicago

from $73

Find
Seattle — Phoenix

from $67

Find
Seattle — San Diego

from $74

Find
Seattle — Los Angeles

from $53

Find
Seattle — Denver

from $243

Find
Seattle — Dallas

from $72

Find
Seattle — Boston

from $63

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 — Tokyo

from $77

Find
Seattle — London

from $70

Find
Seattle — Vancouver

from $57

Find
Seattle — Cancun

from $63

Find
Seattle — Paris

from $66

Find
Seattle — Toronto

from $64

Find
Seattle — Calgary

from $76

Find
Seattle — Mumbai

from $80

Find
Seattle — Montreal

from $68

Find
Seattle — Amsterdam

from $64

Find

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.
To find a plane ticket, please select dates.