Direct flights from Boston to St Louis BOS → STL
American Airlines, Envoy Air and Southwest Airlines fly nonstop from Boston (BOS) to St Louis (STL), several times daily. The flight takes about 2h 39m and covers 1,044 miles (1,680 km). Round-trip fares typically run around $420. Arrivals run on time 75.4% at BOS and 76.7% at STL — BTS data for the last three months, counting arrivals within 15 minutes of schedule. Fares last checked 1 August 2026.
60-day flexibility overview based on 1 recent fares across the next 60 days
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American Airlines
AA
Envoy Air
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NetJets Aviation
1I
Southwest Airlines
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Frequently asked questions
Is there a direct flight from Boston to St Louis?
Yes, American Airlines, Envoy Air and 1 more airline operate nonstop flights from Boston (BOS) to St Louis (STL).
Which airlines fly direct from Boston to St Louis?
American Airlines, Envoy Air, Southwest Airlines operate nonstop flights from Boston to St Louis.
How long is the flight from Boston to St Louis?
The nonstop flight from Boston to St Louis takes ~2h 39m (approximately 1680 km).
How often do direct flights operate from Boston to St Louis?
Nonstop flights from Boston to St Louis operate multiple daily.
What is the on-time performance for flights from Boston to St Louis?
Arrivals run on time 75.4% at BOS and 76.7% at STL — BTS data for the last three months, counting arrivals within 15 minutes of schedule.
How much is a round-trip flight from Boston to St Louis?
Round-trip flights from Boston (BOS) to St Louis (STL) start at $420, with a typical fare around $420. Based on 1 recent fare combinations.
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