Seattle to Boston

SEABOS

Fly from Seattle to Boston starting at USD 141 with American Airlines.Best fare available on Aug 11, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Boston cheapest flights this week

1 Jun
United Airlines
23:00SEA
08:16BOS
1 Stop$155VIEW DEAL
11 Aug
American Airlines
07:40SEA
16:42BOS
1 Stop$141VIEW DEAL
12 Aug
United Airlines
22:47SEA
06:23BOS
1 Stop$143VIEW DEAL
15 Aug
American Airlines
23:16SEA
09:10BOS
1 Stop$206VIEW DEAL

Seattle to Boston monthly flight fare trend

Jun
from USD 155
Jul
No flights
Aug
from USD 141
Sep
No flights
Oct
No flights
Nov
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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