Direct (nonstop) flights from San Antonio to Saint Louis
1 airline flys nonstop from San Antonio International (SAT) to Saint Louis Airport (STL). It's 786 miles (1,265 km), about 2h 10m in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 30, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from San Antonio to Saint Louis with one stop · direct emits 145 kg CO₂ per passenger
Looking for the return flight?
STL → SAT: Flights from Saint Louis to San AntonioOther direct flights from San Antonio
Direct flights from Saint Louis (STL)
Frequently Asked Questions
How long is the direct flight from San Antonio to Saint Louis?
A nonstop flight from San Antonio (SAT) to Saint Louis (STL) takes approximately 2 hours and 10 minutes. The distance is 786 miles (1,265 km).
Which airlines fly nonstop from San Antonio to Saint Louis?
Just Southwest Airlines.
Is there a nonstop flight from San Antonio to Saint Louis?
Yes. 1 airline: Southwest Airlines.
How far is San Antonio from Saint Louis?
The flight distance from San Antonio to Saint Louis is 786 miles (1,265 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Madrid.
What type of aircraft flies from San Antonio to Saint Louis?
At 2h 10m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from San Antonio to Saint Louis?
Roughly 145 kg CO2 per passenger one-way. That's about the same as driving 725 km.
Is the return flight from Saint Louis to San Antonio also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from San Antonio to Saint Louis?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at San Antonio International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.