Cheap flights from San Antonio to St. Louis
787 mi · 45m average nonstop
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Quick answer: San Antonio to St. Louis at a glance
Cheap flights from San Antonio (SAT) to St. Louis (STL) cover 787 miles (1,266 km) in about 45m nonstop, with 2 airlines flying direct — a medium-haul domestic route. Search Kayak for today's cheapest live fare. Route difficulty 3/10.
Summary computed from real OpenFlights coordinates — not an estimate. Prices update live on Kayak.
Flying from San Antonio to St. Louis covers 787 miles (1,266 km) in approximately 0 hour 45 minutes. 2 airlines offer direct flights on this medium-haul domestic route. This is a medium-haul domestic route typically served by direct flights.
Nonstop distance 787 miles. Direct carriers include FL and WN.
We don't track historical prices for this route yet. Search live fares on Kayak for today's best price across 100+ airlines and booking sites.
Airlines on this route
2 airlines fly San Antonio → St. Louis. All are direct routes.
| Airline | Route type |
|---|---|
| FL | Direct |
| WN | Direct |
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San Antonio to St. Louis — quick answers
How far is San Antonio from St. Louis by plane?
The nonstop flight distance from San Antonio (SAT) to St. Louis (STL) is 787 miles (1,266 km), calculated as a great-circle line from published OpenFlights airport coordinates. Actual flown distance is slightly longer due to airways and winds.
How long is the flight from San Antonio to St. Louis?
The average nonstop flight time from SAT to STL is 45 minutes. Gate-to-gate time is usually 20–35 minutes longer; connecting itineraries add 1–4 hours depending on the layover.
Which airlines fly from San Antonio to St. Louis?
2 airlines serve this route nonstop: FL, WN. Schedules and amenities differ by carrier — compare live frequencies and fare classes on Kayak before you book.