Seattle to Boston

SEABOS

Fly from Seattle to Boston starting at SAR 659 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

29 Jul
Alaska Airlines
08:23SEA
13:53BOS
DirectSAR 688VIEW DEAL
2 Aug
Alaska Airlines
06:03SEA
11:23BOS
DirectSAR 918VIEW DEAL
4 Aug
Southwest Airlines
08:15SEA
21:25BOS
1 StopSAR 659VIEW DEAL
4 Aug
Alaska Airlines
17:53SEA
12:51BOS
1 StopSAR 966VIEW DEAL
5 Aug
Southwest Airlines
08:30SEA
21:25BOS
1 StopSAR 659VIEW DEAL
5 Aug
United Airlines
10:29SEA
22:11BOS
1 StopSAR 673VIEW DEAL
5 Aug
Alaska Airlines
15:36SEA
20:59BOS
DirectSAR 895VIEW DEAL
6 Aug
American Airlines
17:02SEA
04:36BOS
1 StopSAR 903VIEW DEAL
7 Aug
American Airlines
11:00SEA
20:24BOS
1 StopSAR 792VIEW DEAL
7 Aug
JetBlue Airways
11:40SEA
17:09BOS
DirectSAR 792VIEW DEAL

Seattle to Boston monthly flight fare trend

Jul
from SAR 688
Aug
from SAR 522
Sep
from SAR 614
Oct
No flights
Nov
No flights
Dec
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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