Boston to Seattle

BOSSEA

Fly from Boston to Seattle starting at USD 126 with Alaska Airlines.Best fare available on Jul 29, 2026.Limited seats. Better plans. Book before it's gone.

Boston to Seattle cheapest flights this week

22 Jul
JetBlue Airways
07:10BOS
13:33SEA
DirectUSD 225VIEW DEAL
22 Jul
Alaska Airlines
07:03BOS
13:26SEA
DirectUSD 167VIEW DEAL
22 Jul
Alaska Airlines
17:56BOS
00:26SEA
DirectUSD 212VIEW DEAL
24 Jul
American Airlines
10:13BOS
21:05SEA
1 StopUSD 222VIEW DEAL
25 Jul
Alaska Airlines
07:03BOS
13:26SEA
DirectUSD 222VIEW DEAL
26 Jul
Alaska Airlines
07:03BOS
13:26SEA
DirectUSD 201VIEW DEAL
27 Jul
Alaska Airlines
17:56BOS
00:26SEA
DirectUSD 139VIEW DEAL
28 Jul
Alaska Airlines
07:03BOS
13:26SEA
DirectUSD 192VIEW DEAL
29 Jul
Alaska Airlines
07:03BOS
13:26SEA
DirectUSD 126VIEW DEAL
29 Jul
Alaska Airlines
09:00BOS
15:23SEA
DirectUSD 170VIEW DEAL

Boston to Seattle monthly flight fare trend

Jul
from USD 126
Aug
from USD 135
Sep
from USD 158
Oct
No flights
Nov
No flights
Dec
No flights

Airport Details

Origin

Boston

Logan International Airport (BOS)

Boston, BOS
Zone

New York

Elev

20 ft

Destination

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

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