Boston to Seattle

BOSSEA

Fly from Boston to Seattle starting at USD 167 with Alaska Airlines.Best fare available on Jul 22, 2026.Limited seats. Better plans. Book before it's gone.

Boston to Seattle cheapest flights this week

15 Jul
Alaska Airlines
19:44BOS
02:07SEA
DirectUSD 175VIEW DEAL
16 Jul
American Airlines
16:06BOS
02:39SEA
1 StopUSD 230VIEW DEAL
16 Jul
Alaska Airlines
07:03BOS
13:26SEA
DirectUSD 240VIEW DEAL
18 Jul
Southwest Airlines
14:10BOS
03:40SEA
1 StopUSD 250VIEW DEAL
20 Jul
Alaska Airlines
19:44BOS
02:07SEA
DirectUSD 221VIEW DEAL
22 Jul
JetBlue Airways
07:10BOS
13:33SEA
DirectUSD 225VIEW DEAL
22 Jul
Alaska Airlines
07:03BOS
13:26SEA
DirectUSD 167VIEW DEAL
24 Jul
American Airlines
10:13BOS
21:05SEA
1 StopUSD 222VIEW DEAL
29 Jul
Alaska Airlines
07:03BOS
13:26SEA
DirectUSD 202VIEW DEAL
1 Aug
JetBlue Airways
09:02BOS
15:27SEA
DirectUSD 240VIEW DEAL

Boston to Seattle monthly flight fare trend

Jul
from USD 167
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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