Flights to Kelso - Longview from St. Louis - ￥12,580

View ￥12,580 flight on Wed, Aug 27, 2025Opens in a new window

Popular airlines from St. Louis to Kelso - Longview

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Hawaiian Airlines

    Hawaiian Airlines

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Cheap Flights from St. Louis to Kelso - Longview (STL-PDX)

Prices were available within the past 7 days and start at ￥12,580 for one-way flights and ￥42,700 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
PDX
Portland
￥42,700 Roundtrip, found 4 days ago
￥42,700
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Aug 3 from St. Louis to Portland, returning Fri, Aug 8, priced at ￥42,700 found 4 days ago
Delta
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
PDX
Portland
￥42,700 Roundtrip, found 4 days ago
￥42,700
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Aug 3 from St. Louis to Portland, returning Fri, Aug 8, priced at ￥42,700 found 4 days ago
American Airlines
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
PDX
Portland
￥48,400 Roundtrip, found 4 days ago
￥48,400
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Aug 3 from St. Louis to Portland, returning Fri, Aug 8, priced at ￥48,400 found 4 days ago
Delta
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
PDX
Portland
￥52,910 Roundtrip, found 4 days ago
￥52,910
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Aug 3 from St. Louis to Portland, returning Fri, Aug 8, priced at ￥52,910 found 4 days ago
United
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
PDX
Portland
￥55,600 Roundtrip, found 4 days ago
￥55,600
Roundtrip
found 4 days ago
Select United flight, departing Sun, Aug 3 from St. Louis to Portland, returning Fri, Aug 8, priced at ￥55,600 found 4 days ago
Hawaiian Airlines
Fri, Jul 11 - Tue, Jul 15
STL
St. Louis
PDX
Portland
￥72,020 Roundtrip, found 7 hours ago
￥72,020
Roundtrip
found 7 hours ago
Select Hawaiian Airlines flight, departing Fri, Jul 11 from St. Louis to Portland, returning Tue, Jul 15, priced at ￥72,020 found 7 hours ago

Find the cheapest month to fly from St. Louis (STL) to Portland (PDX)

September is typically the cheapest month to fly

From ￥16,919 - ￥42,481 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.