Portland to Seattle
PDXBFI
Fly from Portland to Seattle starting at USD 185 with X4.
Best fare available on Jun 18, 2026.
Limited seats. Better plans. Book before it's gone.
Portland to Seattle cheapest flights this week
Portland to Seattle monthly flight fare trend
May
from USD 229
Jun
from USD 185
Jul
No flights
Aug
No flights
Sep
No flights
Oct
No flights
Airport Details
Origin
Portland
Portland International Airport (PDX)
Portland, PDX
Zone
Los Angeles
Elev
31 ft
Destination
Seattle
Boeing Field King County International Airport (BFI)
Seattle, BFI
Zone
Los Angeles
Elev
21 ft
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