Seattle to Boston

SEABOS

Fly from Seattle to Boston starting at SAR 707 with United Airlines.Best fare available on Aug 30, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Boston cheapest flights this week

27 Aug
Alaska Airlines
15:29SEA
20:54BOS
DirectSAR 836VIEW DEAL
27 Aug
United Airlines
08:40SEA
16:55BOS
1 StopSAR 1,495VIEW DEAL
28 Aug
Alaska Airlines
23:06SEA
04:39BOS
DirectSAR 829VIEW DEAL
28 Aug
Alaska Airlines
06:00SEA
11:28BOS
DirectSAR 858VIEW DEAL
29 Aug
Alaska Airlines
23:06SEA
04:39BOS
DirectSAR 940VIEW DEAL
29 Aug
Alaska Airlines
10:19SEA
15:56BOS
DirectSAR 736VIEW DEAL
30 Aug
United Airlines
23:00SEA
06:36BOS
1 StopSAR 707VIEW DEAL
30 Aug
Alaska Airlines
06:00SEA
11:28BOS
DirectSAR 744VIEW DEAL
31 Aug
Alaska Airlines
23:06SEA
04:39BOS
DirectSAR 777VIEW DEAL
1 Sept
Alaska Airlines
17:40SEA
03:09BOS
1 StopSAR 903VIEW DEAL

Seattle to Boston monthly flight fare trend

Aug
from SAR 707
Sep
from SAR 451
Oct
from SAR 566
Nov
from SAR 585
Dec
No flights
Jan
from SAR 899

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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