Cheap flights from St. Louis to Austin

Flights overview

Useful information for finding cheap flights from St. Louis to Austin and booking your next trip
Cheapest round-trip flights $180
Frontier 1 stop 25 hr Thu, Jun 4 — Sun, Jun 7
The cheapest round-trip flight from St. Louis to Austin is currently $180
Cheapest one-way flight $96
Frontier 1 stop 27 hr Wed, Jun 3
The cheapest one-way flight from St. Louis to Austin is currently $96
Cheapest nonstop flights $289
Southwest Nonstop 2 hr Thu, Jul 16 — Sun, Jul 19
The cheapest nonstop round-trip flight from St. Louis to Austin is currently $289
Last-minute weekend getaway $291
Frontier 1 stop 10 hr Thu, May 7 — Mon, May 11
The cheapest last-minute weekend getaway from St. Louis to Austin is currently $291
Cheapest business class flights $438
Frontier 1 stop 19 hr Fri, May 29 — Mon, Jun 1
The cheapest business class round-trip flight from St. Louis to Austin is currently $438
Fastest flight 2 hr The fastest nonstop flight from St. Louis to Austin takes 2 hr
Nonstop flights Every day There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from St. Louis to Austin is typically October. The most expensive month to fly is typically July.
October
Cheapest
Typical prices: $140–265
July
Most expensive
Typical prices: $240–305

Popular airlines from St. Louis to Austin

  • Southwest
    Nonstop
    from $241
    Typical price: $215–385
    21 weekly nonstop flights
    STL - AUS Every day
    992 weekly connecting flights
    STL - AUS Every day
  • American
    from $270
    Typical price: $225–405
    521 weekly connecting flights
    STL - AUS Every day
  • United
    from $251
    Typical price: $225–430
    258 weekly connecting flights
    STL - AUS Every day
  • Delta
    from $251
    Typical price: $235–550
    255 weekly connecting flights
    STL - AUS Every day
  • Alaska
    from $655
    Typical price: $500–1,200
    21 weekly connecting flights
    STL - AUS Every day
  • Frontier
    from $180
    Typical price: $175–400
    15 weekly connecting flights
    STL - AUS Every day

Popular airports near St. Louis

  • St. Louis Lambert International Airport (STL)
    St. Louis United States 21 min 12 mi
  • General Wayne A. Downing Peoria International Airport (PIA)
    Peoria United States 2 hr 36 min 143 mi
  • Columbia Regional Airport (COU)
    Columbia United States 2 hr 8 min 109 mi
  • Indianapolis International Airport (IND)
    Indianapolis United States 3 hr 30 min 222 mi

Popular airports near Austin

  • Austin-Bergstrom International Airport (AUS)
    Austin United States 24 min 6 mi
  • Dallas Fort Worth International Airport (DFW)
    Dallas United States 3 hr 14 min 186 mi
  • George Bush Intercontinental Airport (IAH)
    Houston United States 2 hr 44 min 144 mi
  • San Antonio International Airport (SAT)
    San Antonio United States 1 hr 16 min 66 mi

Frequently asked questions about flying from St. Louis to Austin

The cheapest flights from St. Louis to Austin are usually in October. Typical ticket prices in October range from $140 to $265.
The cheapest round-trip flight from St. Louis to Austin recently found on Google Flights was with Frontier from $180. The cheapest one-way flight was with Frontier from $96.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from St. Louis to Austin is $241, flying from Jun 4 to Jun 8.
  • The cheapest American flight from St. Louis to Austin is $270, flying from May 28 to May 31.
  • The cheapest United flight from St. Louis to Austin is $251, flying from Jun 4 to Jun 8.
  • The cheapest Delta flight from St. Louis to Austin is $251, flying from Jun 4 to Jun 8.
  • The cheapest Alaska flight from St. Louis to Austin is $655, flying from Jun 5 to Jun 8.
  • The cheapest Frontier flight from St. Louis to Austin is $180, flying from Jun 4 to Jun 7.
The cheapest round-trip flight from St. Louis to Austin starts at $180 from Thu, Jun 4 to Sun, Jun 7. The cheapest one-way flight starts at $96 and departs on Wed, Jun 3.
2 hr is the shortest flight time from St. Louis to Austin.
Austin has mild winters and very hot, humid summers that make some outdoor activities inadvisable. Most visitors arrive Mar–Sep. Spring sees crowds for the South by Southwest (SXSW) music and film festival (Mar) and the blooming of the bluebonnet (mid-Mar–mid Apr), which is the Texas state flower. Hotels are especially crowded during college graduation weekends (May). Fall's popular events are the Austin City Limits music festival (Sep), college football season (Sep–Nov) and the Austin Film Festival (Oct).
It's easy to use Google Flights to find the cheapest days to fly from St. Louis to Austin.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What counts as the best airline for your flights from St. Louis to Austin really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from St. Louis to Austin.

In terms of nonstop flights, Southwest is the most popular. Southwest offers 21 nonstop flights and 992 connecting flights per week. Southwest flies from St. Louis Lambert International Airport (STL) to Austin-Bergstrom International Airport (AUS) .

Other popular airlines flying from St. Louis to Austin are:
  • American offers 521 connecting flights per week. American flies from St. Louis Lambert International Airport (STL) to Austin-Bergstrom International Airport (AUS) .
  • United offers 258 connecting flights per week. United flies from St. Louis Lambert International Airport (STL) to Austin-Bergstrom International Airport (AUS) .
  • Delta offers 255 connecting flights per week. Delta flies from St. Louis Lambert International Airport (STL) to Austin-Bergstrom International Airport (AUS) .
  • Alaska offers 21 connecting flights per week. Alaska flies from St. Louis Lambert International Airport (STL) to Austin-Bergstrom International Airport (AUS) .
  • Frontier offers 15 connecting flights per week. Frontier flies from St. Louis Lambert International Airport (STL) to Austin-Bergstrom International Airport (AUS) .
The number of connecting flights refers to distinct flights with at least one stop between St. Louis and Austin.
The cheapest round-trip flight from St. Louis to Austin recently found on Google Flights was with Frontier from $180. The cheapest one-way flight was with Frontier from $96.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from St. Louis to Austin is $241, flying from Jun 4 to Jun 8.
  • The cheapest American flight from St. Louis to Austin is $270, flying from May 28 to May 31.
  • The cheapest United flight from St. Louis to Austin is $251, flying from Jun 4 to Jun 8.
  • The cheapest Delta flight from St. Louis to Austin is $251, flying from Jun 4 to Jun 8.
  • The cheapest Alaska flight from St. Louis to Austin is $655, flying from Jun 5 to Jun 8.
  • The cheapest Frontier flight from St. Louis to Austin is $180, flying from Jun 4 to Jun 7.
Southwest flies direct from St. Louis to Austin.
  • There are 21 Southwest direct flights from St. Louis to Austin per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
The cheapest last-minute deal between St. Louis and Austin at price $291 is offered by Frontier from Thu, May 7 to Mon, May 11.
Southwest flies direct from St. Louis to Austin.
  • There are 21 Southwest direct flights from St. Louis to Austin per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
There are direct flights from St. Louis to Austin on a daily basis.
The cheapest direct (nonstop) round-trip flights between St. Louis and Austin start at $289 from Thu, Jul 16 to Sun, Jul 19 with Southwest.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from St. Louis to Austin, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
The cheapest business class round-trip flights between St. Louis and Austin start at $438 from Fri, May 29 to Mon, Jun 1 with Frontier.
The cheapest economy class round-trip flights between St. Louis and Austin start at $180 from Thu, Jun 4 to Sun, Jun 7.
To book business class trips from St. Louis to Austin, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
The best last-minute getaway deal for the next weekend between St. Louis and Austin starts at $291 from Thu, May 7 to Mon, May 11 with Frontier.
The cheapest last-minute deal between St. Louis and Austin at price $291 is offered by Frontier from Thu, May 7 to Mon, May 11.
To find last-minute flight deals from St. Louis to Austin, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

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