Direct (nonstop) flights from Saint Louis to Austin
1 airline flys nonstop from Saint Louis Airport (STL) to Austin-Bergstrom International Airport (AUS). It's 720 miles (1,159 km), about 2h 10m in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Saint Louis to Austin with one stop · direct emits 133 kg CO₂ per passenger
Looking for the return flight?
AUS → STL: Flights from Austin to Saint LouisOther direct flights from Saint Louis
Direct flights from Austin (AUS)
Frequently Asked Questions
How long is the direct flight from Saint Louis to Austin?
A nonstop flight from Saint Louis (STL) to Austin (AUS) takes approximately 2 hours and 10 minutes. The distance is 720 miles (1,159 km).
Which airlines fly nonstop from Saint Louis to Austin?
Just Southwest Airlines.
Is there a nonstop flight from Saint Louis to Austin?
Yes. 1 airline: Southwest Airlines.
How far is Saint Louis from Austin?
The flight distance from Saint Louis to Austin is 720 miles (1,159 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as the length of Italy.
What type of aircraft flies from Saint Louis to Austin?
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 Saint Louis to Austin?
Roughly 133 kg CO2 per passenger one-way. That's about the same as driving 665 km.
Is the return flight from Austin to Saint Louis 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 Saint Louis to Austin?
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 Saint Louis Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.