Seattle to Boston

SEABOS

Fly from Seattle to Boston starting at USD 178 with Southwest Airlines.Best fare available on Aug 4, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Boston cheapest flights this week

2 Aug
Alaska Airlines
06:03SEA
11:23BOS
DirectUSD 248VIEW DEAL
3 Aug
JetBlue Airways
11:45SEA
17:13BOS
DirectUSD 302VIEW DEAL
4 Aug
Southwest Airlines
08:15SEA
21:25BOS
1 StopUSD 178VIEW DEAL
4 Aug
Alaska Airlines
17:53SEA
12:51BOS
1 StopUSD 261VIEW DEAL
5 Aug
Southwest Airlines
08:30SEA
21:25BOS
1 StopUSD 178VIEW DEAL
5 Aug
United Airlines
10:29SEA
22:11BOS
1 StopUSD 182VIEW DEAL
5 Aug
Alaska Airlines
15:36SEA
20:59BOS
DirectUSD 242VIEW DEAL
6 Aug
American Airlines
17:02SEA
04:36BOS
1 StopUSD 244VIEW DEAL
7 Aug
American Airlines
11:00SEA
20:24BOS
1 StopUSD 214VIEW DEAL
7 Aug
JetBlue Airways
11:40SEA
17:09BOS
DirectUSD 214VIEW DEAL

Seattle to Boston monthly flight fare trend

Aug
from USD 141
Sep
from USD 166
Oct
from USD 153
Nov
No flights
Dec
No flights
Jan
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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