Portland to Seattle
PDXSEA
Fly from Portland to Seattle starting at USD 154 with Alaska Airlines.
Best fare available on Jul 28, 2026.
Limited seats. Better plans. Book before it's gone.
Portland to Seattle cheapest flights this week
Portland to Seattle monthly flight fare trend
Jun
from USD 140
Jul
from USD 154
Aug
No flights
Sep
No flights
Oct
No flights
Nov
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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