Portland to Seattle

PDXSEA

Fly from Portland to Seattle starting at USD 120 with Alaska Airlines.Best fare available on Sep 30, 2026.Limited seats. Better plans. Book before it's gone.

Portland to Seattle cheapest flights this week

30 Sept
Alaska Airlines
06:20PDX
07:20SEA
DirectUSD 120VIEW DEAL
30 Sept
Alaska Airlines
21:32PDX
22:39SEA
DirectUSD 231VIEW DEAL
3 Oct
Alaska Airlines
12:18PDX
13:19SEA
DirectUSD 295VIEW DEAL
10 Oct
Alaska Airlines
17:37PDX
08:58SEA
1 StopUSD 229VIEW DEAL
11 Oct
Alaska Airlines
05:06PDX
06:00SEA
DirectUSD 130VIEW DEAL
30 Oct
Alaska Airlines
11:03PDX
12:05SEA
DirectUSD 140VIEW DEAL
26 Nov
Alaska Airlines
08:22PDX
09:23SEA
DirectUSD 167VIEW DEAL
1 Apr
Alaska Airlines
10:40PDX
11:35SEA
DirectUSD 180VIEW DEAL
29 Jun
United Airlines
10:57PDX
23:21SEA
1 StopUSD 383VIEW DEAL

Portland to Seattle monthly flight fare trend

Sep
from USD 120
Oct
from USD 130
Nov
from USD 167
Dec
No flights
Jan
No flights
Feb
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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