Direct flights from Seattle to St Louis SEA → STL
Alaska Airlines and Southwest Airlines fly nonstop from Seattle (SEA) to St Louis (STL), daily. The flight takes about 4h 1m and covers 1,705 miles (2,744 km). Arrivals run on time 80.8% at SEA and 76.7% at STL — BTS data for the last three months, counting arrivals within 15 minutes of schedule.
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Alaska Airlines
AS
Southwest Airlines
WN
Frequently asked questions
Is there a direct flight from Seattle to St Louis?
Yes, Alaska Airlines and Southwest Airlines operate nonstop flights from Seattle (SEA) to St Louis (STL).
Which airlines fly direct from Seattle to St Louis?
Alaska Airlines, Southwest Airlines operate nonstop flights from Seattle to St Louis.
How long is the flight from Seattle to St Louis?
The nonstop flight from Seattle to St Louis takes ~4h 1m (approximately 2744 km).
How often do direct flights operate from Seattle to St Louis?
Nonstop flights from Seattle to St Louis operate daily.
What is the on-time performance for flights from Seattle to St Louis?
Arrivals run on time 80.8% at SEA and 76.7% at STL — BTS data for the last three months, counting arrivals within 15 minutes of schedule.
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