Seattle to Boston

SEABOS

Fly from Seattle to Boston starting at USD 122 with Southwest Airlines.Best fare available on Sep 9, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Boston cheapest flights this week

2 Sept
Southwest Airlines
08:30SEA
21:25BOS
1 StopUSD 150VIEW DEAL
2 Sept
Southwest Airlines
23:05SEA
06:00BOS
1 StopUSD 218VIEW DEAL
2 Sept
Alaska Airlines
23:06SEA
04:39BOS
DirectUSD 211VIEW DEAL
2 Sept
American Airlines
11:48SEA
20:40BOS
1 StopUSD 339VIEW DEAL
3 Sept
JetBlue Airways
11:40SEA
17:36BOS
DirectUSD 191VIEW DEAL
3 Sept
American Airlines
05:00SEA
14:21BOS
1 StopUSD 333VIEW DEAL
4 Sept
JetBlue Airways
23:41SEA
05:00BOS
DirectUSD 224VIEW DEAL
8 Sept
United Airlines
17:20SEA
04:54BOS
1 StopUSD 235VIEW DEAL
9 Sept
Southwest Airlines
08:30SEA
21:30BOS
1 StopUSD 122VIEW DEAL
9 Sept
American Airlines
22:45SEA
07:25BOS
1 StopUSD 270VIEW DEAL

Seattle to Boston monthly flight fare trend

Sep
from USD 122
Oct
from USD 153
Nov
from USD 158
Dec
No flights
Jan
from USD 243
Feb
No flights

Airport Details

Origin

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

Destination

Boston

Logan International Airport (BOS)

Boston, BOS
Zone

New York

Elev

20 ft

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