Seattle to Boston

SEABOS

Fly from Seattle to Boston starting at USD 150 with Alaska Airlines.Best fare available on Sep 11, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Boston cheapest flights this week

11 Sept
Alaska Airlines
23:06SEA
04:39BOS
DirectUSD 150VIEW DEAL
11 Sept
American Airlines
22:45SEA
07:24BOS
1 StopUSD 295VIEW DEAL
12 Sept
Alaska Airlines
15:29SEA
20:54BOS
DirectUSD 191VIEW DEAL
12 Sept
Frontier Airlines
16:27SEA
03:09BOS
3 StopUSD 615VIEW DEAL
13 Sept
Alaska Airlines
23:06SEA
04:39BOS
DirectUSD 180VIEW DEAL
14 Sept
Alaska Airlines
23:06SEA
04:39BOS
DirectUSD 244VIEW DEAL
17 Sept
United Airlines
14:34SEA
12:50BOS
3 StopUSD 262VIEW DEAL
18 Sept
Alaska Airlines
15:29SEA
20:54BOS
DirectUSD 289VIEW DEAL
19 Sept
Alaska Airlines
23:06SEA
04:39BOS
DirectUSD 261VIEW DEAL
20 Sept
JetBlue Airways
23:42SEA
05:06BOS
DirectUSD 297VIEW DEAL

Seattle to Boston monthly flight fare trend

Sep
from USD 150
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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