Direct flights from St Louis to San Diego STL → SAN
Southwest Airlines flies nonstop from St Louis (STL) to San Diego (SAN), daily. The flight takes about 3h 42m and covers 1,554 miles (2,501 km). Arrivals run on time 76.7% at STL and 75.8% at SAN — BTS data for the last three months, counting arrivals within 15 minutes of schedule. Schedule data from 22 July 2026.
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Southwest Airlines
WN
Departure Schedule typical week
Typical weekly schedule · 9 flights per week · Updated 40d ago
Southwest Airlines
Frequently asked questions
Is there a direct flight from St Louis to San Diego?
Yes, Southwest Airlines operates nonstop flights from St Louis (STL) to San Diego (SAN).
Which airlines fly direct from St Louis to San Diego?
Southwest Airlines operates nonstop flights from St Louis to San Diego.
How long is the flight from St Louis to San Diego?
The nonstop flight from St Louis to San Diego takes ~3h 42m (approximately 2501 km).
How often do direct flights operate from St Louis to San Diego?
Nonstop flights from St Louis to San Diego operate daily — 9 flights per week.
What is the on-time performance for flights from St Louis to San Diego?
Arrivals run on time 76.7% at STL and 75.8% at SAN — BTS data for the last three months, counting arrivals within 15 minutes of schedule.
What days of the week are there direct flights from St Louis to San Diego?
Direct flights from St Louis to San Diego operate every day of the week.
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