Cheap Flight Tickets from St Louis (STL) to Austin (AUS), Starting at $161

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

$168

WN Southwest Airlines • 1 stop • 7h 15m

Sep 23 – Sep 29

The cheapest round trip flight from St Louis to Austin (STL-AUS-STL) is currently $168

🔍 Search Flights

Cheapest Direct Flight

$161

WN Southwest Airlines • nonstop • 3h 20m

Sep 23

The cheapest nonstop flight from St Louis to Austin (STL-AUS) is currently $161

🔍 Search Flights

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

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

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.

Sep 23 - Sep 29, Economy
WN
St Louis → Austin
7h 15m
4:45 PM - 9:20 PM • 1 stop
WN
St Louis → Austin
3h 25m
3:50 PM - 5:55 PM • nonstop
$168
Southwest Airlines
Sep 23 - Sep 29, Economy
WN
St Louis → Austin
8h 20m
8:25 AM - 1:25 PM • 1 stop
WN
St Louis → Austin
5h 30m
12:55 PM - 4:25 PM • 1 stop
$172
Southwest Airlines
Sep 23 - Sep 29, Economy
WN
St Louis → Austin
10h 35m
8:25 AM - 3:00 PM • 1 stop
WN
St Louis → Austin
5h 30m
12:55 PM - 4:25 PM • 1 stop
$172
Southwest Airlines
Sep 23 - Sep 29, Economy
WN
St Louis → Austin
9h
8:35 AM - 2:15 PM • 1 stop
WN
St Louis → Austin
5h 30m
12:55 PM - 4:25 PM • 1 stop
$172
Southwest Airlines
Sep 23 - Sep 29, Economy
WN
St Louis → Austin
10h 30m
12:45 PM - 7:15 PM • 1 stop
WN
St Louis → Austin
5h 30m
12:55 PM - 4:25 PM • 1 stop
$172
Southwest Airlines
Sep 23 - Sep 29, Economy
WN
St Louis → Austin
9h 5m
5:20 PM - 11:05 PM • 1 stop
WN
St Louis → Austin
5h 30m
12:55 PM - 4:25 PM • 1 stop
$172
Southwest Airlines

Fly from St Louis to Austin with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from St Louis to Austin? Find the biggest savings on one-way and round-trip tickets right here.

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 6:00 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 172
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

More Flight Options for St Louis (STL) and Austin (AUS)

Why Fareleaders for STL to AUS Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on St Louis to Austin flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on STL to AUS flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of St Louis to Austin flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the St Louis (STL) to Austin (AUS)
Terms and Conditions*