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

Flights overview

Useful information for finding cheap flights from St. Louis to Austin and booking your next trip

Cheapest round-trip flights	$108	Frontier 1 stop 14 hr Thu, Oct 30 — Mon, Nov 3	The cheapest round-trip flight from St. Louis to Austin is currently $108
Cheapest one-way flight	$60	Frontier 1 stop 28 hr Wed, Oct 29	The cheapest one-way flight from St. Louis to Austin is currently $60
Cheapest nonstop flights	$197	Southwest Nonstop 3 hr Thu, Nov 6 — Mon, Nov 10	The cheapest nonstop round-trip flight from St. Louis to Austin is currently $197
Last-minute weekend getaway	$344	Frontier 1 stop 18 hr Sat, Oct 18 — Sun, Oct 19	The cheapest last-minute weekend getaway from St. Louis to Austin is currently $344
Cheapest business class flights	$548	United 1 stop 5 hr Sat, Dec 6 — Mon, Dec 8	The cheapest business class round-trip flight from St. Louis to Austin is currently $548

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: $140–290
July Most expensive	Typical prices: $240–305

Popular airlines from St. Louis to Austin

Southwest

Nonstop

from $197

Typical price: $225–425

19 weekly nonstop flights

STL - AUS Every day

978 weekly connecting flights

STL - AUS Every day
American

from $217

Typical price: $230–415

532 weekly connecting flights

STL - AUS Every day
United

from $217

Typical price: $240–475

286 weekly connecting flights

STL - AUS Every day
Delta

from $217

Typical price: $240–580

277 weekly connecting flights

STL - AUS Every day
Alaska

from $435

Typical price: $530–1,150

21 weekly connecting flights

STL - AUS Every day
Frontier

from $108

Typical price: $175–445

20 weekly connecting flights

STL - AUS Every day

Popular airports near St. Louis

St. Louis Lambert International Airport (STL)

St. Louis United States 22 min 12 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
Columbia Regional Airport (COU)

Columbia United States 2 hr 3 min 109 mi

Popular airports near Austin

Austin-Bergstrom International Airport (AUS)

Austin United States 25 min 6 mi
George Bush Intercontinental Airport (IAH)

Houston United States 2 hr 45 min 144 mi
Dallas Fort Worth International Airport (DFW)

Dallas United States 3 hr 13 min 186 mi
San Antonio International Airport (SAT)

San Antonio United States 1 hr 18 min 66 mi

Frequently asked questions about flying from St. Louis to Austin

When are the cheapest days to fly 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 $290.

Which airlines provide the cheapest flights from St. Louis to Austin?

The cheapest round-trip flight from St. Louis to Austin recently found on Google Flights was with Frontier from $108. The cheapest one-way flight was with Frontier from $60.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from St. Louis to Austin is $197, flying from Dec 4 to Dec 8.
The cheapest American flight from St. Louis to Austin is $217, flying from Nov 13 to Nov 17.
The cheapest United flight from St. Louis to Austin is $217, flying from Dec 4 to Dec 8.
The cheapest Delta flight from St. Louis to Austin is $217, flying from Dec 4 to Dec 8.
The cheapest Alaska flight from St. Louis to Austin is $435, flying from Nov 7 to Nov 9.
The cheapest Frontier flight from St. Louis to Austin is $108, flying from Oct 30 to Nov 3.

What are the cheapest flights from St. Louis to Austin?

The cheapest round-trip flight from St. Louis to Austin starts at $108 from Thu, Oct 30 to Mon, Nov 3. The cheapest one-way flight starts at $60 and departs on Wed, Oct 29.

How long does it take to fly from St. Louis to Austin?

2 hr is the shortest flight time from St. Louis to Austin.

When should you fly to Austin, United States?

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).

How do I find cheap dates to fly from St. Louis to Austin?

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 is the best airline to fly from St. Louis to Austin?

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 19 nonstop flights and 978 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 532 connecting flights per week. American flies from St. Louis Lambert International Airport (STL) to Austin-Bergstrom International Airport (AUS) .
United offers 286 connecting flights per week. United flies from St. Louis Lambert International Airport (STL) to Austin-Bergstrom International Airport (AUS) .
Delta offers 277 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 20 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.

Which airlines provide the cheapest flights from St. Louis to Austin?

The cheapest round-trip flight from St. Louis to Austin recently found on Google Flights was with Frontier from $108. The cheapest one-way flight was with Frontier from $60.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from St. Louis to Austin is $197, flying from Dec 4 to Dec 8.
The cheapest American flight from St. Louis to Austin is $217, flying from Nov 13 to Nov 17.
The cheapest United flight from St. Louis to Austin is $217, flying from Dec 4 to Dec 8.
The cheapest Delta flight from St. Louis to Austin is $217, flying from Dec 4 to Dec 8.
The cheapest Alaska flight from St. Louis to Austin is $435, flying from Nov 7 to Nov 9.
The cheapest Frontier flight from St. Louis to Austin is $108, flying from Oct 30 to Nov 3.

Which airlines have direct flights from St. Louis to Austin?

Southwest flies direct from St. Louis to Austin.

There are 19 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.

Which airline provides the cheapest last-minute getaway flight from St. Louis to Austin?

The cheapest last-minute deal between St. Louis and Austin at price $344 is offered by Frontier from Sat, Oct 18 to Sun, Oct 19.

Which airlines have direct flights from St. Louis to Austin?

Southwest flies direct from St. Louis to Austin.

There are 19 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.

When are direct flights from St. Louis to Austin available?

There are direct flights from St. Louis to Austin on a daily basis.

What are the cheapest direct flights from St. Louis to Austin?

The cheapest direct (nonstop) round-trip flights between St. Louis and Austin start at $197 from Thu, Nov 6 to Mon, Nov 10 with Southwest.

How can I find nonstop flights from St. Louis to Austin?

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.

What are the cheapest business class flights from St. Louis to Austin?

The cheapest business class round-trip flights between St. Louis and Austin start at $548 from Sat, Dec 6 to Mon, Dec 8 with United.

What are the cheapest economy class flights from St. Louis to Austin?

The cheapest economy class round-trip flights between St. Louis and Austin start at $108 from Thu, Oct 30 to Mon, Nov 3.

How can I book business class trips from St. Louis to Austin?

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.

Are there any last-minute deals from St. Louis to Austin next weekend?

The best last-minute getaway deal for the next weekend between St. Louis and Austin starts at $344 from Sat, Oct 18 to Sun, Oct 19 with Frontier.

Which airline provides the cheapest last-minute getaway flight from St. Louis to Austin?

The cheapest last-minute deal between St. Louis and Austin at price $344 is offered by Frontier from Sat, Oct 18 to Sun, Oct 19.

How can I find last-minute flight deals from St. Louis to Austin?

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.