Lowest Prices
Uncover the best deals on Austin to St Louis flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest AUS - STL Flights
Useful information for finding best airline tickets from Austin Bergstrom International to Lambert St Louis International on your next trip.
Cheapest Round Trip Flight
$304
United Airlines
• 1 stop
• 8h 47m
Aug 11 – Aug 17
The cheapest round trip flight from Austin to St Louis (AUS-STL-AUS) is currently $304
Cheapest Direct Flight
$488
Southwest Airlines
• nonstop
• 3h 25m
Aug 11
The cheapest nonstop flight from Austin to St Louis (AUS-STL) is currently $488
Fastest Flight
3h 25m
The fastest nonstop flight from Austin to St Louis (AUS-STL) takes 3h 25m
Top Airlines Flying from Austin to St Louis
Latest Flight Deals from Austin (AUS) to St Louis (STL)
Compare and book low fare round-trip air tickets from Austin to St Louis. Ideal for travelers with confirmed return itineraries.
Aug 11 - Aug 17, Economy
Austin → St Louis
8h 47m
6:35 AM - 12:02 PM • 1 stop
Austin → St Louis
11h 48m
1:36 PM - 8:44 PM • 1 stop
United Airlines
Aug 11 - Aug 17, Economy
Austin → St Louis
9h 12m
12:12 PM - 6:04 PM • 1 stop
Austin → St Louis
10h 54m
9:30 AM - 4:24 PM • 1 stop
United Airlines
Aug 11 - Aug 17, Economy
Austin → St Louis
6h 40m
10:25 AM - 2:25 PM • 1 stop
Austin → St Louis
6h 40m
3:45 PM - 7:45 PM • 1 stop
Southwest Airlines
Aug 11 - Aug 17, Economy
Austin → St Louis
7h 33m
1:34 PM - 6:27 PM • 1 stop
Austin → St Louis
8h 20m
6:00 AM - 11:00 AM • 1 stop
Delta Airlines
Aug 11 - Aug 17, Economy
Austin → St Louis
6h 55m
8:00 AM - 12:15 PM • 1 stop
Austin → St Louis
5h 39m
3:32 PM - 7:11 PM • 1 stop
American Airlines
Looking for the fastest way to St Louis? These direct flight options from AUS to STL offer both convenience and value—no layovers, just straight to your destination.
Aug 11 - Aug 17, Economy
Austin → St Louis
3h 25m
7:30 AM - 9:35 AM • nonstop
Austin → St Louis
3h 20m
8:45 PM - 10:45 PM • nonstop
Southwest Airlines
FAQs on Austin to St Louis Flights
What are the airports in Austin?
AUS
What’s the most popular airline flying from AUS to STL?
The most popular airline flying from Austin to St Louis are
Can I fly from AUS to STL non-stop?
Yes, you can fly AUS to STL non-stop on
Which airlines fly nonstop between Austin and St Louis?
The non-stop flights between Austin and St Louis are .
What’s the earliest departure time from AUS to STL Airport?
The earliest flight leaves AUS at 6:35 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Austin to St Louis 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 AUS to STL?
Read the fare rules of the Austin to St Louis 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 Austin and St Louis?
operate flights between Austin and St Louis
How long does a flight from Austin to St Louis take?
It takes approximately 2 hour to fly non-stop from AUS to STL, which is 721.44 miles by air.
Which airlines provide the cheapest flights from Austin (AUS) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from AUS were found on DL : USD 587
Do I need a passport to fly between AUS and STL?
No
What’s the latest departure time from AUS to STL ?
The last flight leaves AUS at 4:58 pm
Essential Information for Booking Flights from Austin (AUS) - AI Insights
What's the cheapest airline from aus to stl?
You can find affordable flights from Austin to St. Louis on Southwest Airlines, which operates this route with two stops. For a premium economy experience, consider booking your tickets in advance, ideally 59 days prior to your trip. This will help you secure the best fares and enjoy enhanced comfort during your journey.
What's the popular airline to fly from aus to stl?
You can fly from Austin to St. Louis on Southwest Airlines, which operates a popular route between these two cities. The flight has two stops and is suitable for Premium Economy passengers who require enhanced comfort during their journey. Booking in advance will help you secure the best airfares, with 59 days being an ideal time to make your reservation.
What's the cheapest day of the week to fly from aus to stl?
The cheapest day to fly from Austin (AUS) to St. Louis (STL) is Sunday, as it tends to have lower airfare prices compared to other days of the week.
What's the cheapest month to fly from aus to stl?
The cheapest month to fly from Austin to St. Louis is December, as it tends to have lower airfares due to increased demand during other winter months.
Which airline/airlines fly from aus to stl?
Porter Airline (PD) offers flights from Austin Bergstrom International Airport (aus) to Lambert St Louis International Airport (stl), along with Allegiant (G4), American Airlines (AA), Frontier Airlines (F9), Delta Airlines (DL), JetBlue Airways (B6), Alaska Airlines (AS), Southwest Airlines (WN), and United Airlines (UA). For a budget-friendly option, consider flights on Porter Airline or other low-cost carriers.
What is the cheapest airfare from Austin Bergstrom International to Lambert St Louis International for a round trip with 6 passengers?
The cheapest airfare from Austin Bergstrom International to Lambert St Louis International for a round trip with 6 passengers can be found on Southwest Airlines (WN), with advance booking days of 59 and a trip type of Round Trip.
How many advance booking days do I need to book my Premium Economy flights?
You should book your Premium Economy flights at least 59 advance booking days in advance to get the best deals on Southwest Airlines (WN).
Can I find last-minute flights on fareleaders.com for weekend getaways?
Yes, you can find last-minute flights on fareleaders.com for weekend getaways. Our website offers a range of options for same-day bookings and weekend travel.
Are there any discounts or promotions available for busco travelers?
We offer exclusive discounts and promotions for busco travelers. Check our website for the latest deals and offers.
What is the best way to compare airfares and fares on your website?
The best way to compare airfares and fares on fareleaders.com is by using our airline comparison tool, which allows you to filter results by airline, destination, and travel dates.
When can I expect to receive updates on latest airflights and cheapestflights?
You can expect to receive updates on the latest airflights and cheapestflights on fareleaders.com every month in December. Follow us on social media for the latest news and offers.
Austin (AUS) to St Louis (STL): Airport Information
| Origin Airport | Austin Bergstrom International , Austin, US |
| Destination Airport | Lambert St Louis International , St Louis, US |
| Distance | 721 miles |
More Flight Options for Austin (AUS) and St Louis (STL)
Flights from Austin (AUS)
to Denver (DEN)
Flights from Austin (AUS)
to Las Vegas (LAS)
Flights from Austin (AUS)
to San Diego (SAN)
Flights from Austin (AUS)
to Buffalo (BUF)
Flights from Austin (AUS)
to Detroit (DTW)
Flights from Austin (AUS)
to Sarasota/Bradenton (SRQ)
Flights from Austin (AUS)
to Minneapolis (MSP)
Flights from Austin (AUS)
to Minneapolis (MSP)
Flights from Austin (AUS)
to Seattle (SEA)
Flights from Austin (AUS)
to Atlanta (ATL)
Flights from Austin (AUS)
to Chicago (MDW)
Flights from Austin (AUS)
to New Orleans (MSY)
Flights from Austin (AUS)
to Charlotte (CLT)
Flights from Austin (AUS)
to Norfolk (ORF)
Flights from Austin (AUS)
to New York (LGA)
Flights from Austin (AUS)
to San Francisco (SFO)
Flights from Austin (AUS)
to Philadelphia (PHL)
Flights from Austin (AUS)
to Charleston (CHS)
Flights from Austin (AUS)
to Orlando (MCO)
Flights from Austin (AUS)
to Pittsburgh (PIT)
Flights from Chicago (MDW)
to St Louis (STL)
Flights from Boston (BOS)
to St Louis (STL)
Flights from Orlando (MCO)
to St Louis (STL)
Flights from Fort Lauderdale (FLL)
to St Louis (STL)
Flights from Houston (HOU)
to St Louis (STL)
Flights from Denver (DEN)
to St Louis (STL)
Flights from Atlanta (ATL)
to St Louis (STL)
Flights from Charlotte (CLT)
to St Louis (STL)
Flights from Oklahoma City (OKC)
to St Louis (STL)
Flights from Minneapolis (MSP)
to St Louis (STL)
Flights from Minneapolis (MSP)
to St Louis (STL)
Flights from Austin (AUS)
to St Louis (STL)
Flights from Baltimore (BWI)
to St Louis (STL)
Flights from Baltimore (BWI)
to St Louis (STL)
Flights from Washington (DCA)
to St Louis (STL)
Flights from Kansas City (MCI)
to St Louis (STL)
Flights from Dallas (DFW)
to St Louis (STL)
Flights from Phoenix (PHX)
to St Louis (STL)
Flights from Sacramento (SMF)
to St Louis (STL)
Flights from Fort Myers (RSW)
to St Louis (STL)
Cheap flights to North America (NA)
Cheap flights to United States (US)
Cheap flights to Texas (US-TX)
Cheap flights to Missouri (US-MO)
Cheap flights from North America (NA)
Cheap flights from United States (US)
Cheap flights from Texas (US-TX)
Cheap flights from Missouri (US-MO)
Flights to Austin (AUS)
Flights to St Louis (STL)
Flights from Austin (AUS)
Flights from St Louis (STL)
Flights from St Louis (STL)
to Austin (AUS)
Why Fareleaders for AUS to STL Plane Tickets
New Deals Everyday
Get the best prices on AUS to STL flights—we update our fares daily so you never miss a saving.
No Service Fees
Compare hundreds of Austin to St Louis flights and secure the best deals—we never add any service fees.