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

This flight path from Austin Bergstrom to Lambert-St Louis was viewed by 7 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

Our cheapest airline available from Austin to St. Louis is American Airlines. Our recent data shows that you can find tickets from as low as $199 on this airline. Additional options worth looking into are Delta and Southwest, starting at $209 and $211 round-trip. You may be able to fly from Austin to St. Louis for 39% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Austin to St. Louis one-way?

$95 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Frontier and Southwest, with prices starting from $96 and $100, respectively.

What is the cheapest day to fly from Austin to St. Louis?

Travelers seeking maximum savings on their Austin to St. Louis flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

While on average a flight from Austin to St. Louis is generally $290, our data shows the cheapest flight currently is $133. When looking at the most popular route, (Austin Bergstrom - Lambert-St Louis), you can expect to pay $199 for that flight.

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

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

What is the cheapest day to fly round-trip from Austin to St. Louis?

Users have found that flying from Austin to St. Louis on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

To save up to 100% on this flight, we recommend booking at least 48 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Austin to St. Louis from $354 1-2 weeks out and tickets from $461 for flights departing within the next 72 hours.

What is the cheapest month to fly from Austin to St. Louis?

July can be a great time to fly to St. Louis from Austin with a flight ticket averaging about $328. Cheapflights users have found deals in the month of July for as cheap as $222. The most expensive prices can be found in the month of March.

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 eDreams the most. eDreams 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 5 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.

$95+ Flights from Austin to St. Louis - Compare & Save Big

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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

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Cheapflights Tip: The best prices from Austin Bergstrom to Lambert-St Louis are usually found in July or August, booked 77 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap flight deals from Austin to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$199 (American Airlines)
One-way from	$95 (American Airlines)
Popular in	March
Cheapest in	July
Average price	$330
Good round-trip deal	$291 or less
Good one-way deal	$176 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. 8% potential increase in price ($30 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 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 April 29, 2025.

Thu 5/14:56 pmAUS - STL

1 stop28h 09mFrontier

Sat 5/38:15 pmSTL - AUS

1 stop15h 50mFrontier

Deal found 4/29

$198

Thu 6/196:36 pmAUS - STL

1 stop5h 18mAmerican Airlines

Tue 6/245:37 amSTL - AUS

1 stop4h 02mAmerican Airlines

Deal found 4/28

$199

Thu 5/225:00 amAUS - STL

Nonstop2h 05mSouthwest

Sun 5/258:55 pmSTL - AUS

Nonstop2h 05mSouthwest

Deal found 4/29

$211

Thu 5/226:45 amAUS - STL

1 stop7h 50mDelta

Sun 5/256:00 amSTL - AUS

1 stop7h 08mDelta

Deal found 4/29

$221

Thu 6/55:00 amAUS - STL

1 stop4h 39mUnited Airlines

Mon 6/95:55 pmSTL - AUS

1 stop5h 09mUnited Airlines

Deal found 4/29

$233

Fri 6/67:14 amAUS - STL

1 stop26h 01mSpirit Airlines

Sun 6/810:10 amSTL - AUS

2 stops32h 10mSpirit Airlines

Deal found 4/29

$329

Fri 6/67:14 amAUS - STL

1 stop26h 01mMultiple Airlines

Sun 6/812:15 pmSTL - AUS

3 stops34h 48mMultiple Airlines

Deal found 4/29

$336

Wed 6/49:30 amAUS - STL

2 stops14h 34mAlaska Airlines

Mon 6/96:18 pmSTL - AUS

1 stop23h 41mAlaska Airlines

Deal found 4/28

$538

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 April 29, 2025.

Thu 6/196:36 pmAUS - STL

1 stop5h 18mAmerican Airlines

Tue 6/245:37 amSTL - AUS

1 stop4h 02mAmerican Airlines

Deal found 4/28

$199

Tue 5/276:08 pmAUS - STL

1 stop5h 18mDelta

Thu 5/295:40 pmSTL - AUS

1 stop5h 21mDelta

Deal found 4/28

$209

Thu 5/225:00 amAUS - STL

Nonstop2h 05mSouthwest

Sun 5/258:55 pmSTL - AUS

Nonstop2h 05mSouthwest

Deal found 4/29

$211

Thu 6/55:00 amAUS - STL

1 stop4h 39mUnited Airlines

Mon 6/95:55 pmSTL - AUS

1 stop5h 09mUnited Airlines

Deal found 4/29

$233

Fri 5/166:00 amAUS - STL

1 stop27h 59mFrontier

Sun 5/189:55 pmSTL - AUS

1 stop18h 08mFrontier

Deal found 4/29

$241

Mon 5/267:25 pmAUS - STL

3 stops23h 16mMultiple Airlines

Mon 6/21:00 pmSTL - AUS

3 stops34h 03mMultiple Airlines

Deal found 4/28

$383

Wed 6/49:30 amAUS - STL

2 stops14h 34mAlaska Airlines

Mon 6/96:18 pmSTL - AUS

1 stop20h 50mAlaska Airlines

Deal found 4/28

$538

Last-minute flights from Austin to St. Louis
Discover last-minute flight deals from Austin to St. Louis. Data last updated April 29, 2025 and is based on user searches.

Thu 5/14:56 pmAUS - STL

1 stop28h 09mFrontier

Sat 5/38:15 pmSTL - AUS

1 stop15h 50mFrontier

Deal found 4/29

$198

Thu 5/88:15 pmAUS - STL

1 stop27h 59mFrontier

Mon 5/126:53 pmSTL - AUS

1 stop28h 27mFrontier

Deal found 4/28

$221

Thu 5/85:05 amAUS - STL

2 stops10h 42mUnited Airlines

Mon 5/121:41 pmSTL - AUS

1 stop7h 19mUnited Airlines

Deal found 4/28

$454

Thu 5/225:00 amAUS - STL

Nonstop2h 05mSouthwest

Sun 5/258:55 pmSTL - AUS

Nonstop2h 05mSouthwest

Deal found 4/29

$211

Thu 5/226:45 amAUS - STL

1 stop7h 50mDelta

Sun 5/256:00 amSTL - AUS

1 stop7h 08mDelta

Deal found 4/29

$221

Thu 5/225:00 amAUS - STL

2 stops10h 30mUnited Airlines

Mon 5/268:25 amSTL - AUS

1 stop6h 57mUnited Airlines

Deal found 4/29

$388

Thu 5/221:39 pmAUS - STL

3 stops30h 31mMultiple Airlines

Sun 5/2512:15 pmSTL - AUS

3 stops34h 48mMultiple Airlines

Deal found 4/29

$410

Tue 5/276:00 amAUS - STL

2 stops18h 04mAlaska Airlines

Mon 6/26:52 amSTL - AUS

2 stops16h 46mAlaska Airlines

Deal found 4/29

$783

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 April 29, 2025.

Sat 5/316:01 amAUS - STL

1 stop3h 53mAmerican Airlines

Deal found 4/29

$95

Fri 5/96:00 amAUS - STL

1 stop27h 59mFrontier

Deal found 4/29

$96

Tue 7/155:00 amAUS - STL

Nonstop2h 05mSouthwest

Deal found 4/29

$100

Wed 5/216:23 pmAUS - STL

1 stop5h 15mDelta

Deal found 4/29

$105

Thu 5/226:00 pmAUS - STL

1 stop4h 15mUnited Airlines

Deal found 4/29

$117

Wed 6/117:14 amAUS - STL

3 stops33h 50mSpirit Airlines

Deal found 4/29

$158

Mon 6/28:11 pmAUS - STL

3 stops22h 30mMultiple Airlines

Deal found 4/29

$164

Sun 6/87:28 amAUS - STL

2 stops25h 50mAlaska Airlines

Deal found 4/29

$362

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Thu 6/19

6:36 pm-11:54 pm

1 stop5h 18m

Lambert-St Louis

Tue 6/24

5:37 am-9:39 am

1 stop4h 02m

$199

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Thu 5/22

5:00 am-7:05 am

Nonstop2h 05m

Lambert-St Louis

Sun 5/25

8:55 pm-11:00 pm

Nonstop2h 05m

$211

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Thu 5/22

6:45 am-2:35 pm

1 stop7h 50m

Lambert-St Louis

Sun 5/25

6:00 am-1:08 pm

1 stop7h 08m

$221

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Fri 5/16

6:00 am-9:59 am

1 stop27h 59m

Lambert-St Louis

Sun 5/18

5:45 pm-9:42 am

1 stop15h 57m

$228

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Fri 6/13

4:19 pm-10:17 pm

1 stop5h 58m

Lambert-St Louis

Tue 6/17

5:00 am-12:59 pm

2 stops7h 59m

$314

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Fri 6/6

7:14 am-9:15 am

1 stop26h 01m

Lambert-St Louis

Sun 6/8

10:10 am-6:20 pm

2 stops32h 10m

$329

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Fri 6/6

7:14 am-9:15 am

1 stop26h 01m

Lambert-St Louis

Sun 6/8

12:15 pm-11:03 pm

3 stops34h 48m

$336

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Wed 6/4

9:30 am-12:04 am

2 stops14h 34m

Lambert-St Louis

Mon 6/9

6:18 pm-5:59 pm

1 stop23h 41m

$538

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Sat 5/31

6:01 am-9:54 am

1 stop3h 53m

$95

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Fri 5/9

6:00 am-9:59 am

1 stop27h 59m

$96

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 16 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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy2 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 eDreams the most. eDreams 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 77 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, August is the cheapest month in which you can book a flight from Austin to St. Louis (average of $311). Flying from Austin to St. Louis in March is currently the most expensive (average of $356). 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 in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 44% on airfare.

Rainfall in St. Louis by month

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.

Temperature in St. Louis by month

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).

Reviews of airlines servicing St. Louis

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Austin to St. Louis to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,961 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,295 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,936 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 5 airlines.
How popular is this Austin to St. Louis flight route?
This flight path from Austin Bergstrom to Lambert-St Louis was viewed by 7 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest airlines flying from Austin to St. Louis round-trip?
Our cheapest airline available from Austin to St. Louis is American Airlines. Our recent data shows that you can find tickets from as low as $199 on this airline. Additional options worth looking into are Delta and Southwest, starting at $209 and $211 round-trip. You may be able to fly from Austin to St. Louis for 39% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Austin to St. Louis one-way?
$95 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Frontier and Southwest, with prices starting from $96 and $100, respectively.
What are the cheapest flights from Austin to St. Louis?
While on average a flight from Austin to St. Louis is generally $290, our data shows the cheapest flight currently is $133. When looking at the most popular route, (Austin Bergstrom - Lambert-St Louis), you can expect to pay $199 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, August is the cheapest month in which you can book a flight from Austin to St. Louis (average of $311). Flying from Austin to St. Louis in March is currently the most expensive (average of $356). 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

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Other flights to St. Louis

Top 5 airlines flying from Austin to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$136	Average$259	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$194	Average$332	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$197	Average$318	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$198	Average$264	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$231	Average$329	FlexibilityNo cancel fee	On-time63%

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$95+ 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 5/31. 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 July or August, booked 77 days in advance, depart on a Tuesday or Friday and return on a Monday

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 April 29, 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 April 29, 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 April.

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?

Use this chart to determine the optimal time to book a round-trip flight from Austin to St. Louis. Price data was last updated on April 25, 2025.

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?

Find hourly flight availability from Austin to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Austin to St. Louis to help guide your decision. You can also see how each airline compares in terms of 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?

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

What are the cheapest airlines to fly from Austin to St. Louis one-way?

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

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Top 5 airlines flying from Austin to St. Louis

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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 April 29, 2025.