St Louis to Portland
STLPDX
Fly from St Louis to Portland starting at USD 154 with Alaska Airlines.
Best fare available on Sep 4, 2026.
Limited seats. Better plans. Book before it's gone.
St Louis to Portland cheapest flights this week
St Louis to Portland monthly flight fare trend
Sep
from USD 154
Oct
No flights
Nov
No flights
Dec
No flights
Jan
No flights
Feb
No flights
Airport Details
Origin
St Louis
St. Louis Lambert International Airport (STL)
St Louis, STL
Zone
Chicago
Elev
618 ft
Destination
Portland
Portland International Airport (PDX)
Portland, PDX
Zone
Los Angeles
Elev
31 ft
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