£164 Cheap Flights from St. Louis (STL) to Austin (AUS)

View £164 flight on Sat, 25 Oct 2025Opens in a new window

Popular airlines from Lambert-St. Louis International Airport (STL) to Austin-Bergstrom International Airport (AUS)

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Cheap Flights from St. Louis (STL) to Austin (AUS)

Prices were available within the past 7 days and start at £164 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from St. Louis (STL) to Austin (AUS)

October is typically the cheapest month to fly

From £118 - £368 per traveller.

Graph displaying average flight prices per month

Flight from St. Louis to Austin route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Austin-Bergstrom Intl.
Distance
1153 km
Average flight time
2 hours 14 mins

Compare flights from St. Louis to Austin easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from St. Louis to Austin. Operating between them 3 flights per day, 20 airlines cover the route. And Southwest Airlines fly direct, getting you to Austin-Bergstrom Intl. in just 2hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Lambert-St. Louis Intl. to Austin-Bergstrom Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Lambert-St. Louis Intl. (STL) to Austin-Bergstrom Intl. (AUS)

The easiest way to view the best deals on flights from St. Louis to Austin today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Lambert-St. Louis Intl. to Austin-Bergstrom Intl. start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near St. Louis and Austin
  • booking your flight during , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your St. Louis to Austin flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Lambert-St. Louis Intl. to Austin-Bergstrom Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from St. Louis Lambert International Airport to Austin-Bergstrom Intl. Airport (AUS)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight between St. Louis Lambert International Airport and Austin–Bergstrom International Airport was . Fares this good don't hang around forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from St. Louis Lambert International Airport to AUS?
Each airline has different terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from STL to Austin–Bergstrom International Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for STL to AUS flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Lambert-St. Louis Intl. Airport (STL) to Austin-Bergstrom Intl. Airport (AUS)?
You won't have time for a movie marathon on this flight — it's just 1,150 kilometres from St. Louis to Austin. Find your way to your seat, get comfortable and you'll be touching down in no time.
Which airlines fly direct from Lambert Field to AUS?
One airline that services the route from Lambert Field to Austin-Bergstrom Intl. Airport (AUS) is Southwest Airlines (WN). It offers 91 flights a month. American Airlines (AA) is another option. It offers 56 flights a month. Between these two airlines, you'll be able to find a good deal from St. Louis to Austin.
Are Lambert-St. Louis Intl. Airport (STL) to AUS flight tickets cheaper when they're purchased at the last minute?
Booking last minute from St. Louis Lambert International Airport to Austin–Bergstrom International Airport can be hit-or-miss. It is possible to find a bargain, but you could also completely miss out! If you'd rather play it safe and start planning early, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines publish their prices that far in advance. Our advice? Check back often as prices are updated frequently.

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