Flights from Seattle Tacoma to Boston

Our cheapest offers for flights from Seattle Tacoma to Boston

Here you can compare cheap flights from Seattle Tacoma (SEA) to Boston (BOS) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Boston. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Seattle-Tacoma
Boston
Outbound
04/26/25
direct
B60498
05h 28min
Return
05/23/25
1 Stopover (JFK)
B60217, B60263
08h 59min
JetBlue Airways ?
$389
Best option
Seattle-Tacoma
Boston
Outbound
04/26/25
direct
AS0536
05h 26min
Return
05/23/25
direct
AS0819
06h 23min
Alaska Airlines ?
$530
Seattle-Tacoma
Boston
Outbound
04/26/25
direct
B60498
05h 28min
Return
05/23/25
1 Stopover (JFK)
B60217, B60263
08h 59min
JetBlue Airways ?
$415
Seattle-Tacoma
Boston
Outbound
04/26/25
direct
AS0536
05h 26min
Return
05/23/25
1 Stopover (PDX)
AS0437, AS0596
10h 45min
Alaska Airlines
$426
Seattle-Tacoma
Boston
Outbound
04/26/25
direct
AS0536
05h 26min
Return
05/23/25
1 Stopover (PDX)
AS0437, AS1008
08h 40min
Alaska Airlines ?
$427
Seattle-Tacoma
Boston
Outbound
04/26/25
direct
AS0536
05h 26min
Return
05/23/25
direct
AS0459
06h 23min
Alaska Airlines
$558
Seattle-Tacoma
Boston
Outbound
04/26/25
direct
AA7432
05h 24min
Return
05/23/25
1 Stopover (PDX)
AS0437, AS1008
08h 40min
American Airlines ?
$624
Seattle-Tacoma
Boston
Outbound
04/26/25
1 Stopover (SFO)
UA2490, UA1665
09h 39min
Return
05/23/25
direct
AA9302
06h 23min
United Airlines ?
$673
Seattle-Tacoma
Boston
Outbound
04/26/25
2 Stopovers (LAS, MCO)
NK0782, NK1853, NK3005
16h 18min
Return
05/23/25
1 Stopover (MSP)
SY0252, SY0289
14h 12min
Spirit Airlines
$765
Seattle-Tacoma
Boston
Outbound
04/26/25
2 Stopovers (LAX, BWI)
NK0801, NK2074, NK2075
14h 29min
Return
05/23/25
1 Stopover (MSP)
SY0252, SY0289
14h 12min
Spirit Airlines
$774
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Seattle Tacoma to Boston

Favorite airline: e.g. Spirit Airlines, Sun Country Airlines
75 % of flights booked on the route from Seattle-Tacoma to Boston are booked with Spirit Airlines, Sun Country Airlines and Delta.
Spirit Airlines
28 %
Sun Country Airlines
28 %
Delta
19 %
Stopover flights are the cheapest connection
Direct flights on this route are $25.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
2 stops
05h 20min
08h 11min
21h 34min
$ 266
$ 331
$ 241
Favourite connection: via Minneapolis
On this route, flights with a stopover in Minneapolis are the most popular.
Route
bookings
1 stopover Minneapolis - St. Paul International Airport, MN
13h 48min, from $ 335
41 %
1 stopover Las Vegas - McCarran International Airport, NV
11h 28min, from $ 364
26 %
Direct flights
05h 20min, from $ 266
22 %

Important flight information

Flight information: Seattle-Tacoma - Boston

Roundtrip from $ 388,64
Flight duration min. 05:08 / max. 08:15
Return flight duration min. 06:33/ max. 10:40
Distance 4010 km
Flights per week 47
Departure airport Airport Seattle-Tacoma International Airport, WA (SEA)
Arrival airport Airport Boston Logan International Airport, MA (BOS)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Boston
Flight destinations with a similar price
Flight destinations with a similar price