Cheap flights from Austin to St. Louis

Flights overview

Useful information for finding cheap flights from Austin to St. Louis and booking your next trip
Cheapest round-trip flights $141
Frontier 1 stop 24 hr Thu, Jan 29 — Sun, Feb 1
The cheapest round-trip flight from Austin to St. Louis is currently $141
Cheapest one-way flight $55
Frontier 1 stop 6 hr Mon, Jan 26
The cheapest one-way flight from Austin to St. Louis is currently $55
Cheapest nonstop flights $217
Southwest Nonstop 2 hr Thu, Jan 15 — Mon, Jan 19
The cheapest nonstop round-trip flight from Austin to St. Louis is currently $217
Last-minute weekend getaway $362
Frontier 1 stop 13 hr Thu, Nov 20 — Sun, Nov 23
The cheapest last-minute weekend getaway from Austin to St. Louis is currently $362
Cheapest business class flights $579
United 1 stop 6 hr Thu, Jan 8 — Sun, Jan 11
The cheapest business class round-trip flight from Austin to St. Louis is currently $579
Fastest flight 2 hr The fastest nonstop flight from Austin to St. Louis 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 Austin to St. Louis is typically January. The most expensive month to fly is typically July.
January
Cheapest
Typical prices: $135–315
July
Most expensive
Typical prices: $240–325

Popular airlines from Austin to St. Louis

  • Southwest
    Nonstop
    from $217
    Typical price: $220–425
    21 weekly nonstop flights
    AUS - STL Every day
    1203 weekly connecting flights
    AUS - STL Every day
  • American
    from $199
    Typical price: $225–410
    539 weekly connecting flights
    AUS - STL Every day
  • United
    from $227
    Typical price: $240–470
    318 weekly connecting flights
    AUS - STL Every day
  • Delta
    from $237
    Typical price: $240–560
    231 weekly connecting flights
    AUS - STL Every day
  • Alaska
    from $438
    Typical price: $530–1,150
    20 weekly connecting flights
    AUS - STL Every day
  • Frontier
    from $110
    Typical price: $175–445
    20 weekly connecting flights
    AUS - STL Every day

Popular airports near Austin

  • Austin-Bergstrom International Airport (AUS)
    Austin United States 23 min 6 mi
  • Dallas Fort Worth International Airport (DFW)
    Dallas United States 3 hr 13 min 186 mi
  • George Bush Intercontinental Airport (IAH)
    Houston United States 2 hr 43 min 144 mi
  • San Antonio International Airport (SAT)
    San Antonio United States 1 hr 16 min 66 mi

Popular airports near St. Louis

  • St. Louis Lambert International Airport (STL)
    St. Louis United States 21 min 12 mi
  • MidAmerica St. Louis Airport (BLV)
    Belleville United States 34 min 20 mi
  • General Wayne A. Downing Peoria International Airport (PIA)
    Peoria United States 2 hr 35 min 143 mi
  • Indianapolis International Airport (IND)
    Indianapolis United States 3 hr 28 min 222 mi

Frequently asked questions about flying from Austin to St. Louis

When are the cheapest days to fly from Austin to St. Louis?
The cheapest flights from Austin to St. Louis are usually in January. Typical ticket prices in January range from $135 to $315.
Which airlines provide the cheapest flights from Austin to St. Louis?
The cheapest round-trip flight from Austin to St. Louis recently found on Google Flights was with Frontier from $141. The cheapest one-way flight was with Frontier from $55.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from Austin to St. Louis is $217, flying from Jan 8 to Jan 12.
  • The cheapest American flight from Austin to St. Louis is $199, flying from Jan 22 to Jan 26.
  • The cheapest United flight from Austin to St. Louis is $227, flying from Jan 15 to Jan 18.
  • The cheapest Delta flight from Austin to St. Louis is $237, flying from Jan 15 to Jan 19.
  • The cheapest Alaska flight from Austin to St. Louis is $438, flying from Jan 29 to Feb 2.
  • The cheapest Frontier flight from Austin to St. Louis is $110, flying from Jan 22 to Jan 26.
What are the cheapest flights from Austin to St. Louis?
The cheapest round-trip flight from Austin to St. Louis starts at $141 from Thu, Jan 29 to Sun, Feb 1. The cheapest one-way flight starts at $55 and departs on Mon, Jan 26.
How long does it take to fly from Austin to St. Louis?
2 hr is the shortest flight time from Austin to St. Louis.
When should you fly to St. Louis, United States?
Apr–Sep is the most popular time to visit, coinciding with hot, humid summer and events like Fair St. Louis, a huge Fourth of July festival at Forest Park, and the Taste of St. Louis food festival (Sep). Weather in winter is cold, with occasional snow.
How do I find cheap dates to fly from Austin to St. Louis?
It's easy to use Google Flights to find the cheapest days to fly from Austin to St. Louis.
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 is the best airline to fly from Austin to St. Louis?
What counts as the best airline for your flights from Austin to St. Louis 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 Austin to St. Louis.

In terms of nonstop flights, Southwest is the most popular. Southwest offers 21 nonstop flights and 1,203 connecting flights per week. Southwest flies from Austin-Bergstrom International Airport (AUS) to St. Louis Lambert International Airport (STL) .

Other popular airlines flying from Austin to St. Louis are:
  • American offers 539 connecting flights per week. American flies from Austin-Bergstrom International Airport (AUS) to St. Louis Lambert International Airport (STL) .
  • United offers 318 connecting flights per week. United flies from Austin-Bergstrom International Airport (AUS) to St. Louis Lambert International Airport (STL) .
  • Delta offers 231 connecting flights per week. Delta flies from Austin-Bergstrom International Airport (AUS) to St. Louis Lambert International Airport (STL) .
  • Alaska offers 20 connecting flights per week. Alaska flies from Austin-Bergstrom International Airport (AUS) to St. Louis Lambert International Airport (STL) .
  • Frontier offers 20 connecting flights per week. Frontier flies from Austin-Bergstrom International Airport (AUS) to St. Louis Lambert International Airport (STL) .
The number of connecting flights refers to distinct flights with at least one stop between Austin and St. Louis.
Which airlines provide the cheapest flights from Austin to St. Louis?
The cheapest round-trip flight from Austin to St. Louis recently found on Google Flights was with Frontier from $141. The cheapest one-way flight was with Frontier from $55.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from Austin to St. Louis is $217, flying from Jan 8 to Jan 12.
  • The cheapest American flight from Austin to St. Louis is $199, flying from Jan 22 to Jan 26.
  • The cheapest United flight from Austin to St. Louis is $227, flying from Jan 15 to Jan 18.
  • The cheapest Delta flight from Austin to St. Louis is $237, flying from Jan 15 to Jan 19.
  • The cheapest Alaska flight from Austin to St. Louis is $438, flying from Jan 29 to Feb 2.
  • The cheapest Frontier flight from Austin to St. Louis is $110, flying from Jan 22 to Jan 26.
Which airlines have direct flights from Austin to St. Louis?
Southwest flies direct from Austin to St. Louis.
  • There are 21 Southwest direct flights from Austin to St. Louis per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
Which airline provides the cheapest last-minute getaway flight from Austin to St. Louis?
The cheapest last-minute deal between Austin and St. Louis at price $362 is offered by Frontier from Thu, Nov 20 to Sun, Nov 23.
Which airlines have direct flights from Austin to St. Louis?
Southwest flies direct from Austin to St. Louis.
  • There are 21 Southwest direct flights from Austin to St. Louis per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
When are direct flights from Austin to St. Louis available?
There are direct flights from Austin to St. Louis on a daily basis.
What are the cheapest direct flights from Austin to St. Louis?
The cheapest direct (nonstop) round-trip flights between Austin and St. Louis start at $217 from Thu, Jan 15 to Mon, Jan 19 with Southwest.
How can I find nonstop flights from Austin to St. Louis?
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Austin to St. Louis, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
What are the cheapest business class flights from Austin to St. Louis?
The cheapest business class round-trip flights between Austin and St. Louis start at $579 from Thu, Jan 8 to Sun, Jan 11 with United.
What are the cheapest economy class flights from Austin to St. Louis?
The cheapest economy class round-trip flights between Austin and St. Louis start at $141 from Thu, Jan 29 to Sun, Feb 1.
How can I book business class trips from Austin to St. Louis?
To book business class trips from Austin to St. Louis, 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.
Are there any last-minute deals from Austin to St. Louis next weekend?
The best last-minute getaway deal for the next weekend between Austin and St. Louis starts at $362 from Thu, Nov 20 to Sun, Nov 23 with Frontier.
Which airline provides the cheapest last-minute getaway flight from Austin to St. Louis?
The cheapest last-minute deal between Austin and St. Louis at price $362 is offered by Frontier from Thu, Nov 20 to Sun, Nov 23.
How can I find last-minute flight deals from Austin to St. Louis?
To find last-minute flight deals from Austin to St. Louis, 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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