St Louis to Portland
STLPDX
Fly from St Louis to Portland starting at USD 228 with Frontier Airlines.
Best fare available on Jun 23, 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
Jun
from USD 228
Jul
No flights
Aug
No flights
Sep
No flights
Oct
No flights
Nov
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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