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Uncover the best deals on St Louis to Austin flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest STL - AUS Flights
Useful information for finding best airline tickets from Lambert St Louis International to Austin Bergstrom International on your next trip.
Cheapest Round Trip Flight
$463
Southwest Airlines
• 1 stop
• 8h 40m
Jul 20 – Jul 27
The cheapest round trip flight from St Louis to Austin (STL-AUS-STL) is currently $463
Cheapest Direct Flight
$468
Southwest Airlines
• nonstop
• 3h 20m
Jul 20
The cheapest nonstop flight from St Louis to Austin (STL-AUS) is currently $468
Fastest Flight
3h 20m
The fastest nonstop flight from St Louis to Austin (STL-AUS) takes 3h 20m
Top Airlines Flying from St Louis to Austin
Latest Flight Deals from St Louis (STL) to Austin (AUS)
Compare and book low fare round-trip air tickets from St Louis to Austin. Ideal for travelers with confirmed return itineraries.
Jul 20 - Jul 27, Economy
St Louis → Austin
8h 40m
8:15 AM - 1:35 PM • 1 stop
St Louis → Austin
5h 30m
5:35 AM - 9:05 AM • 1 stop
Southwest Airlines
Jul 20 - Jul 27, Economy
St Louis → Austin
10h 30m
5:00 AM - 11:30 AM • 1 stop
St Louis → Austin
5h 30m
5:35 AM - 9:05 AM • 1 stop
Southwest Airlines
Jul 20 - Jul 27, Economy
St Louis → Austin
10h 25m
9:25 AM - 3:50 PM • 1 stop
St Louis → Austin
5h 30m
5:35 AM - 9:05 AM • 1 stop
Southwest Airlines
Jul 20 - Jul 27, Economy
St Louis → Austin
3h 20m
8:10 AM - 10:10 AM • nonstop
St Louis → Austin
3h 20m
7:15 AM - 9:15 AM • nonstop
Southwest Airlines
Jul 19 - Jul 26, Economy
St Louis → Austin
10h 10m
2:15 PM - 8:25 PM • 1 stop
St Louis → Austin
7h 10m
5:15 PM - 9:45 PM • 1 stop
Southwest Airlines
Flying to Austin soon? We've surfaced some of the most affordable last-minute flights from St Louis to Austin, ideal for urgent plans or spontaneous trips.
Jul 20 - Jul 27, Economy
St Louis → Austin
8h 40m
8:15 AM - 1:35 PM • 1 stop
St Louis → Austin
5h 30m
5:35 AM - 9:05 AM • 1 stop
Southwest Airlines
Jul 20 - Jul 27, Economy
St Louis → Austin
10h 30m
5:00 AM - 11:30 AM • 1 stop
St Louis → Austin
5h 30m
5:35 AM - 9:05 AM • 1 stop
Southwest Airlines
Jul 20 - Jul 27, Economy
St Louis → Austin
10h 25m
9:25 AM - 3:50 PM • 1 stop
St Louis → Austin
5h 30m
5:35 AM - 9:05 AM • 1 stop
Southwest Airlines
Jul 20 - Jul 27, Economy
St Louis → Austin
3h 20m
8:10 AM - 10:10 AM • nonstop
St Louis → Austin
3h 20m
7:15 AM - 9:15 AM • nonstop
Southwest Airlines
Jul 19 - Jul 26, Economy
St Louis → Austin
10h 10m
2:15 PM - 8:25 PM • 1 stop
St Louis → Austin
7h 10m
5:15 PM - 9:45 PM • 1 stop
Southwest Airlines
Looking for the fastest way to Austin? These direct flight options from STL to AUS offer both convenience and value—no layovers, just straight to your destination.
Jul 20 - Jul 27, Economy
St Louis → Austin
3h 20m
8:10 AM - 10:10 AM • nonstop
St Louis → Austin
3h 20m
7:15 AM - 9:15 AM • nonstop
Southwest Airlines
Jul 20 - Jul 27, Economy
St Louis → Austin
3h 20m
3:20 PM - 5:20 PM • nonstop
St Louis → Austin
3h 20m
7:15 AM - 9:15 AM • nonstop
Southwest Airlines
Jul 20 - Jul 27, Economy
St Louis → Austin
3h 20m
9:55 PM - 11:55 PM • nonstop
St Louis → Austin
3h 20m
7:15 AM - 9:15 AM • nonstop
Southwest Airlines
Jul 19 - Jul 26, Economy
St Louis → Austin
3h 20m
8:25 AM - 10:25 AM • nonstop
St Louis → Austin
3h 25m
5:05 PM - 7:10 PM • nonstop
Southwest Airlines
Jul 19 - Jul 26, Economy
St Louis → Austin
3h 20m
5:15 PM - 7:15 PM • nonstop
St Louis → Austin
3h 25m
12:30 PM - 2:35 PM • nonstop
Southwest Airlines
FAQs on St Louis to Austin Flights
What are the airports in St Louis?
STL
What’s the most popular airline flying from STL to AUS?
The most popular airline flying from St Louis to Austin are
Can I fly from STL to AUS non-stop?
Yes, you can fly STL to AUS non-stop on
Which airlines fly nonstop between St Louis and Austin?
The non-stop flights between St Louis and Austin are .
What’s the earliest departure time from STL to AUS Airport?
The earliest flight leaves STL at 5:00 am and lands in AUS - Austin Bergstrom International
What are the airports in Austin?
AUS
Can I make changes to my St Louis to Austin flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from STL to AUS?
Read the fare rules of the St Louis to Austin air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from St Louis and Austin?
operate flights between St Louis and Austin
How long does a flight from St Louis to Austin take?
It takes approximately 2 hour to fly non-stop from STL to AUS, which is 721.44 miles by air.
Which airlines provide the cheapest flights from St Louis (STL) to Austin (AUS) ?
In the past couple of days, the cheapest tickets to AUS from STL were found on WN : USD 463
Do I need a passport to fly between STL and AUS?
No
What’s the latest departure time from STL to AUS ?
The last flight leaves STL at 10:25 pm
St Louis (STL) to Austin (AUS): Airport Information
| Origin Airport | Lambert St Louis International , St Louis, US |
| Destination Airport | Austin Bergstrom International , Austin, US |
| Distance | 721 miles |
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