How popular is this Austin to St. Louis flight route?

This flight path from Austin Bergstrom to Lambert-St Louis was viewed by 12 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How long is the flight from Austin to St. Louis?

There are many flights that can get you from Austin to St. Louis in 5h 25m. Fly via Delta or Frontier to get the fastest option. The distance between Austin and St. Louis is about 722 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Austin to St. Louis round-trip?

Our cheapest airline available from Austin to St. Louis is United Airlines. Our recent data shows that you can find tickets from as low as $194 on this airline. Additional options worth looking into are Frontier and Southwest, starting at $195 and $198 round-trip. You may be able to fly from Austin to St. Louis for 41% less than the average price by searching for these airlines.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

While on average a flight from Austin to St. Louis is generally $273, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Austin Bergstrom - Lambert-St Louis), you can expect to pay $193 for that flight.

What are the most popular airlines that fly from Austin to St. Louis?

Consider Southwest, American Airlines or Frontier when booking your flight. These represent the most popular airlines when flying from Austin to St. Louis.

Most accurate provider : When it comes to deals on Austin-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-St. Louis flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Austin-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airports do I use to fly from Austin to St. Louis?

If you book a flight from Austin to St. Louis, you will be flying from Austin Bergstrom to Lambert-St Louis. Flights to Lambert-St Louis (STL) from Austin Bergstrom (AUS) take 2h 05m for a nonstop flight. There are 2 flights from Austin Bergstrom to St. Louis per day from 4 airlines.

Can I find deals for flights from Austin to St. Louis that include hotel bookings?

Yes. In addition to deals on Austin to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

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

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to St. Louis.

Can I find deals for business class flights from Austin to St. Louis?

Yes. Cheapflights offers flight deals from Austin to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$61+ Flights from Austin to St. Louis

Q: How much does it cost to fly round-trip from Austin to St. Louis?

Airfare is below average for this route at the moment. Austin to St. Louis flights typically cost between $254 and $451 in November. The cheapest round-trip price found within the last 3 days was $119 on Frontier (Nov 12-Nov 13).

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Austin to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Austin Bergstrom to Lambert-St Louis are usually found in January or April, booked 51 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Austin to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$119 (Mytrip)
One-way from	$61 (Frontier)
Popular in	March
Cheapest in	January
Average price	$349
Good round-trip deal	$254 or less
Good one-way deal	$98 or less

Provider with most accurate pricing for Austin Bergstrom-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Austin Bergstrom-Lambert-St Louis flights.

Search Deals

From Austin Bergstrom to Lambert-St Louis

Search Deals

One-way flight from Austin Bergstrom to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Price to beat on a round-trip flight from Austin Bergstrom to Lambert-St Louis.

Search Deals

Price to beat on a one-way flight from Austin Bergstrom to Lambert-St Louis.

Search Deals

Find flight deals from Austin to St. Louis

Cheapest flights from Austin to St. Louis
Explore the most affordable flight options available from Austin to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

Wed 11/127:45 amAUS - STL

1 stop25h 22mFrontier

Thu 11/132:12 pmSTL - AUS

1 stop26h 33mFrontier

Deal found 10/26

$121

Thu 12/186:45 amAUS - STL

1 stop27h 17mFrontier

Mon 12/2210:40 amSTL - AUS

1 stop21h 28mFrontier

Deal found 10/25

$139

Thu 11/206:45 amAUS - STL

1 stop12h 13mFrontier

Fri 12/512:07 pmSTL - AUS

1 stop7h 36mFrontier

Deal found 10/27

$143

Wed 11/127:45 amAUS - STL

1 stop25h 22mFrontier

Fri 11/147:45 pmSTL - AUS

1 stop27h 31mFrontier

Deal found 10/26

$154

Sat 11/87:45 amAUS - STL

1 stop25h 22mFrontier

Tue 11/117:45 pmSTL - AUS

1 stop24h 57mFrontier

Deal found 10/25

$159

Fri 11/147:14 pmAUS - STL

1 stop20h 42mFrontier

Mon 11/177:45 pmSTL - AUS

1 stop24h 57mFrontier

Deal found 10/27

$175

Sun 11/166:00 amAUS - STL

1 stop27h 07mMultiple Airlines

Thu 11/2010:53 amSTL - AUS

1 stop12h 05mMultiple Airlines

Deal found 10/24

$178

Fri 11/76:00 amAUS - STL

1 stop27h 07mFrontier

Mon 11/107:45 pmSTL - AUS

1 stop24h 57mFrontier

Deal found 10/26

$195

Thu 11/139:27 amAUS - STL

1 stop25h 57mMultiple Airlines

Sun 11/2311:08 amSTL - AUS

1 stop11h 50mMultiple Airlines

Deal found 10/25

$197

Sat 11/87:45 amAUS - STL

1 stop25h 22mFrontier

Mon 11/107:45 pmSTL - AUS

1 stop24h 57mFrontier

Deal found 10/25

$202

Thu 12/115:25 amAUS - STL

1 stop7h 51mDelta

Thu 12/189:30 amSTL - AUS

1 stop6h 24mDelta

Deal found 10/27

$207

Thu 11/67:14 pmAUS - STL

1 stop24h 58mFrontier

Sun 11/97:45 pmSTL - AUS

1 stop13h 57mFrontier

Deal found 10/24

$208

Best flights from Austin to St. Louis
Discover carefully curated flight deals from Austin to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2025.

Thu 1/86:15 pmAUS - STL

1 stop5h 25mDelta

Mon 1/125:30 pmSTL - AUS

1 stop5h 33mDelta

Deal found 10/24

$207

Mon 11/1010:37 amAUS - STL

1 stop22h 30mFrontier

Fri 11/142:42 pmSTL - AUS

1 stop24h 42mFrontier

Deal found 10/25

$211

Wed 11/125:00 amAUS - STL

2 stops29h 12mMultiple Airlines

Thu 11/137:02 pmSTL - AUS

1 stop27h 47mMultiple Airlines

Deal found 10/26

$228

Fri 12/265:05 amAUS - STL

Nonstop2h 05mSouthwest

Tue 12/305:25 amSTL - AUS

1 stop5h 20mSouthwest

Deal found 10/25

$253

Wed 1/75:10 pmAUS - STL

1 stop6h 29mDelta

Mon 1/123:32 pmSTL - AUS

1 stop7h 23mDelta

Deal found 10/26

$207

Fri 11/148:50 pmAUS - STL

2 stops19h 06mMultiple Airlines

Sun 11/2311:08 amSTL - AUS

1 stop11h 50mMultiple Airlines

Deal found 10/25

$231

Sat 12/135:25 amAUS - STL

1 stop7h 15mDelta

Sat 12/135:34 pmSTL - AUS

1 stop5h 28mDelta

Deal found 10/26

$227

Tue 11/256:15 pmAUS - STL

1 stop5h 08mDelta

Thu 12/47:05 amSTL - AUS

1 stop5h 32mDelta

Deal found 10/27

$238

Mon 12/296:27 pmAUS - STL

1 stop5h 15mDelta

Fri 1/27:00 amSTL - AUS

1 stop7h 24mDelta

Deal found 10/26

$249

Last-minute flights from Austin to St. Louis
Discover last-minute flight deals from Austin to St. Louis. Data last updated October 27, 2025 and is based on user searches.

Sun 11/25:00 amAUS - STL

1 stop27h 07mFrontier

Sun 11/95:12 pmSTL - AUS

1 stop23h 33mFrontier

Deal found 10/26

$211

Thu 11/67:14 pmAUS - STL

1 stop24h 58mFrontier

Sun 11/97:45 pmSTL - AUS

1 stop13h 57mFrontier

Deal found 10/24

$208

Fri 11/76:00 amAUS - STL

1 stop27h 07mFrontier

Mon 11/107:45 pmSTL - AUS

1 stop24h 57mFrontier

Deal found 10/24

$195

Sat 11/87:45 amAUS - STL

1 stop25h 22mFrontier

Tue 11/117:45 pmSTL - AUS

1 stop24h 57mFrontier

Deal found 10/25

$159

Sat 11/87:45 amAUS - STL

1 stop25h 22mFrontier

Mon 11/107:45 pmSTL - AUS

1 stop24h 57mFrontier

Deal found 10/25

$202

Wed 11/127:45 amAUS - STL

1 stop25h 22mFrontier

Thu 11/132:12 pmSTL - AUS

1 stop26h 33mFrontier

Deal found 10/26

$121

Wed 11/127:45 amAUS - STL

1 stop25h 22mFrontier

Fri 11/147:45 pmSTL - AUS

1 stop27h 31mFrontier

Deal found 10/26

$154

Thu 11/139:27 amAUS - STL

1 stop25h 57mMultiple Airlines

Sun 11/2311:08 amSTL - AUS

1 stop11h 50mMultiple Airlines

Deal found 10/25

$197

Fri 11/147:14 pmAUS - STL

1 stop20h 42mFrontier

Mon 11/177:45 pmSTL - AUS

1 stop24h 57mFrontier

Deal found 10/27

$175

Sun 11/166:00 amAUS - STL

1 stop27h 07mMultiple Airlines

Thu 11/2010:53 amSTL - AUS

1 stop12h 05mMultiple Airlines

Deal found 10/24

$178

Thu 11/206:45 amAUS - STL

1 stop12h 13mFrontier

Fri 12/512:07 pmSTL - AUS

1 stop7h 36mFrontier

Deal found 10/27

$143

One-way flights from Austin to St. Louis
Search for one-way flight options from Austin to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 27, 2025.

Thu 12/49:59 amAUS - STL

1 stop12h 34mFrontier

Deal found 10/25

$61

Sun 1/256:45 amAUS - STL

1 stop27h 17mFrontier

Deal found 10/25

$63

Tue 12/96:55 amAUS - STL

1 stop27h 19mFrontier

Deal found 10/26

$65

Thu 11/135:14 pmAUS - STL

1 stop17h 06mFrontier

Deal found 10/27

$66

Sun 1/116:03 pmAUS - STL

1 stop13h 47mFrontier

Deal found 10/27

$68

Wed 1/218:48 pmAUS - STL

1 stop25h 45mMultiple Airlines

Deal found 10/25

$69

Thu 1/1510:58 amAUS - STL

1 stop20h 56mFrontier

Deal found 10/27

$72

Wed 12/245:51 pmAUS - STL

1 stop15h 49mFrontier

Deal found 10/26

$73

Sat 1/245:45 amAUS - STL

1 stop8h 08mSpirit Airlines

Deal found 10/25

$80

Tue 12/26:45 amAUS - STL

1 stop27h 29mFrontier

Deal found 10/25

$85

Thu 1/88:48 pmAUS - STL

1 stop25h 45mMultiple Airlines

Deal found 10/26

$86

Fly from

Fly to

Route

Depart

Return

Price

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Thu 1/8

6:15 pm-11:40 pm

1 stop5h 25m

Lambert-St Louis

Mon 1/12

5:30 pm-11:03 pm

1 stop5h 33m

$207

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Wed 1/7

5:10 pm-11:39 pm

1 stop6h 29m

Lambert-St Louis

Mon 1/12

3:32 pm-10:55 pm

1 stop7h 23m

$207

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Mon 11/10

10:37 am-9:07 am

1 stop22h 30m

Lambert-St Louis

Fri 11/14

2:42 pm-3:24 pm

1 stop24h 42m

$211

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Sat 12/13

5:25 am-12:40 pm

1 stop7h 15m

Lambert-St Louis

Sat 12/13

5:34 pm-11:02 pm

1 stop5h 28m

$227

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Wed 11/12

5:00 am-10:12 am

2 stops29h 12m

Lambert-St Louis

Thu 11/13

7:02 pm-10:49 pm

1 stop27h 47m

$228

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Fri 11/14

8:50 pm-3:56 pm

2 stops19h 06m

Lambert-St Louis

Sun 11/23

11:08 am-10:58 pm

1 stop11h 50m

$231

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Tue 11/25

6:15 pm-11:23 pm

1 stop5h 08m

Lambert-St Louis

Thu 12/4

7:05 am-12:37 pm

1 stop5h 32m

$238

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Mon 12/29

6:27 pm-11:42 pm

1 stop5h 15m

Lambert-St Louis

Fri 1/2

7:00 am-2:24 pm

1 stop7h 24m

$249

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Fri 12/26

5:05 am-7:10 am

Nonstop2h 05m

Lambert-St Louis

Tue 12/30

5:25 am-10:45 am

1 stop5h 20m

$253

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Mon 1/5

5:05 am-7:10 am

Nonstop2h 05m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 19 results

Compare providers for flights from Austin to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to St. Louis in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
CheapOair	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Austin-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Austin-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Austin to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Austin with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Austin to St. Louis

How far ahead should I book a flight from Austin to St. Louis?

The price you pay for your flight from Austin to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Austin to St. Louis?

Currently, May is the cheapest month in which you can book a flight from Austin to St. Louis (average of $120). Flying from Austin to St. Louis in December is currently the most expensive (average of $248). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AUS to STL?

One of the essential ways to save on airfare from Austin to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 36% on airfare.

How much does it cost to fly round-trip from Austin to St. Louis?

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Austin to St. Louis, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest

8.0

Very good

4,238 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,999 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

American Airlines

7.2

Good

11,031 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Frontier

5.8

Fair

3,123 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

What airports do I use to fly from Austin to St. Louis?
If you book a flight from Austin to St. Louis, you will be flying from Austin Bergstrom to Lambert-St Louis. Flights to Lambert-St Louis (STL) from Austin Bergstrom (AUS) take 2h 05m for a nonstop flight. There are 2 flights from Austin Bergstrom to St. Louis per day from 4 airlines.
How popular is this Austin to St. Louis flight route?
This flight path from Austin Bergstrom to Lambert-St Louis was viewed by 12 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Austin to St. Louis?
There are many flights that can get you from Austin to St. Louis in 5h 25m. Fly via Delta or Frontier to get the fastest option. The distance between Austin and St. Louis is about 722 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Austin to St. Louis round-trip?
Our cheapest airline available from Austin to St. Louis is United Airlines. Our recent data shows that you can find tickets from as low as $194 on this airline. Additional options worth looking into are Frontier and Southwest, starting at $195 and $198 round-trip. You may be able to fly from Austin to St. Louis for 41% less than the average price by searching for these airlines.
What are the cheapest flights from Austin to St. Louis?
While on average a flight from Austin to St. Louis is generally $273, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Austin Bergstrom - Lambert-St Louis), you can expect to pay $193 for that flight.
Can I find deals for flights from Austin to St. Louis that include hotel bookings?
Yes. In addition to deals on Austin to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Austin to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to St. Louis.
Can I find deals for business class flights from Austin to St. Louis?
Yes. Cheapflights offers flight deals from Austin to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Austin to St. Louis?
Currently, May is the cheapest month in which you can book a flight from Austin to St. Louis (average of $120). Flying from Austin to St. Louis in December is currently the most expensive (average of $248). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Edwardsville

O'Fallon

Fairview Heights

Maryland Heights

Collinsville

Eureka

Glencoe

St. Peters

Chesterfield

Alton

Farmington

Festus

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Austin to St. Louis

Dallas/Fort Worth to St. Louis flights

Dallas/Fort Worth to Kansas City flights

Hobby to Kansas City flights

Hobby to St. Louis flights

George Bush Intcntl to St. Louis flights

George Bush Intcntl to Kansas City flights

Love Field to St. Louis flights

Love Field to Kansas City flights

Austin to Kansas City flights

Dallas/Fort Worth to Springfield flights

Hobby to Springfield flights

George Bush Intcntl to Springfield flights

San Antonio to St. Louis flights

Austin to Springfield flights

San Antonio to Kansas City flights

El Paso to Springfield flights

El Paso to Kansas City flights

McAllen to Kansas City flights

El Paso to St. Louis flights

Dallas/Fort Worth to Columbia flights

Love Field to Springfield flights

San Antonio to Springfield flights

Austin to Columbia flights

George Bush Intcntl to Columbia flights

Hobby to Columbia flights

Laredo to Kansas City flights

Corpus Christi to St. Louis flights

Lubbock to St. Louis flights

Dallas/Fort Worth to Joplin flights

Killeen to Kansas City flights

Hobby to Joplin flights

Midland to Springfield flights

McAllen to Springfield flights

Lubbock to Springfield flights

Killeen to St. Louis flights

Dallas/Fort Worth to Branson flights

Austin to Joplin flights

Amarillo to Springfield flights

Waco to St. Louis flights

McAllen to Joplin flights

Killeen to Springfield flights

San Antonio to Joplin flights

Lubbock to Kansas City flights

Corpus Christi to Columbia flights

Lubbock to Columbia flights

San Angelo to Kansas City flights

Waco to Columbia flights

Abilene to Springfield flights

El Paso to Branson flights

Complete your trip

St. Louis car rentals

Lambert-St Louis Airport car rentals

Springfield Capital Airport car rentals

Belleville Airport car rentals

Marion Williamson County Airport car rentals

Kansas City car rentals

Springfield car rentals

Joplin car rentals

Columbia car rentals

Fort Leonard Wood car rentals

Downtown car rentals

The Hill car rentals

Other flights to St. Louis

Top 4 airlines flying from Austin to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$194	Average$307	FlexibilityNo cancel fee	On-time69%
Frontier	Cheapest$195	Average$331	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$198	Average$326	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$242	Average$423	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$61+ Cheap flights from Austin to St. Louis (AUS - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Austin to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Austin Bergstrom to Lambert-St Louis are usually found in January or April, booked 51 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Austin to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Austin to St. Louis

Cheapest flights from Austin to St. LouisExplore the most affordable flight options available from Austin to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

Explore the most affordable flight options available from Austin to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Austin to St. Louis that are best for you.

Compare providers for flights from Austin to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to St. Louis in October.

Best time to book a flight from Austin to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Austin with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Austin to St. Louis

How far ahead should I book a flight from Austin to St. Louis?

What is the cheapest month to book a flight from Austin to St. Louis?

What is the cheapest time of day to fly from AUS to STL?

How much does it cost to fly round-trip from Austin to St. Louis?

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Austin to St. Louis, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Austin to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from Austin to St. Louis?

How popular is this Austin to St. Louis flight route?

How long is the flight from Austin to St. Louis?

What are the cheapest airlines flying from Austin to St. Louis round-trip?

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

Can I find deals for flights from Austin to St. Louis that include hotel bookings?

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

Can I find deals for business class flights from Austin to St. Louis?

What is the cheapest month to book a flight from Austin to St. Louis?

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Austin to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Austin to St. Louis

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Austin to St. Louis
Explore the most affordable flight options available from Austin to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.