Portland to Seattle

PDXSEA

Fly from Portland to Seattle starting at SAR 403 with Alaska Airlines.Best fare available on Aug 8, 2026.Limited seats. Better plans. Book before it's gone.

Portland to Seattle cheapest flights this week

5 Aug
Alaska Airlines
17:30PDX
18:33SEA
DirectSAR 655VIEW DEAL
6 Aug
Alaska Airlines
08:19PDX
09:14SEA
DirectSAR 514VIEW DEAL
7 Aug
Alaska Airlines
05:00PDX
05:53SEA
DirectSAR 466VIEW DEAL
8 Aug
Alaska Airlines
06:19PDX
07:17SEA
DirectSAR 403VIEW DEAL
28 Aug
Alaska Airlines
11:48PDX
12:50SEA
DirectSAR 474VIEW DEAL
12 Sept
Frontier Airlines
17:30PDX
18:26SEA
1 StopSAR 448VIEW DEAL
12 Sept
Alaska Airlines
09:20PDX
10:17SEA
DirectSAR 437VIEW DEAL
1 Apr
Alaska Airlines
10:40PDX
11:35SEA
DirectSAR 666VIEW DEAL
29 Jun
United Airlines
10:57PDX
23:21SEA
1 StopSAR 1,417VIEW DEAL

Portland to Seattle monthly flight fare trend

Aug
from SAR 403
Sep
from SAR 437
Oct
No flights
Nov
No flights
Dec
No flights
Jan
No flights

Airport Details

Origin

Portland

Portland International Airport (PDX)

Portland, PDX
Zone

Los Angeles

Elev

31 ft

Destination

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

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