Portland (PDX) → St Louis (STL)
Alaska Airlines and Southwest Airlines operate nonstop flights from Portland (PDX) to St Louis (STL). The nonstop flight takes around ~3h 26m, covering 1,704 miles (2,742 km). Updated 1 June 2026.
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Alaska Airlines
AS
Southwest Airlines
WN
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Frequently asked questions
Is there a direct flight from Portland to St Louis?
Yes, Alaska Airlines and Southwest Airlines operate nonstop flights from Portland (PDX) to St Louis (STL).
Which airlines fly direct from Portland to St Louis?
Alaska Airlines, Southwest Airlines operate nonstop flights from Portland to St Louis.
How long is the flight from Portland to St Louis?
The nonstop flight from Portland to St Louis takes ~3h 26m (approximately 2742 km).