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

This flight path from Austin Bergstrom to Lambert-St Louis was viewed by 6 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 Frontier. Our recent data shows that you can find tickets from as low as $180 on this airline. Additional options worth looking into are Southwest and Spirit Airlines, starting at $223 and $230 round-trip. You may be able to fly from Austin to St. Louis for 45% 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 Spirit 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 $282, our data shows the cheapest flight currently is $118. When looking at the most popular route, (Austin Bergstrom - Lambert-St Louis), you can expect to pay $211 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 $329. Cheapflights users have found deals in the month of July for as cheap as $224. 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 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 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

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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 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	FlightHub 3 stars
Round-trip from	$180 (CheapOair)
One-way from	$95 (Mytrip)
Popular in	March
Cheapest in	July
Average price	$325
Good round-trip deal	$292 or less
Good one-way deal	$139 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. 7% potential increase in price ($27 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 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 11, 2025.

Tue 5/136:45 amAUS - STL

1 stop27h 14mFrontier

Sat 5/178:15 pmSTL - AUS

1 stop15h 40mFrontier

Deal found 4/10

$180

Tue 5/136:20 amAUS - STL

Nonstop2h 05mSouthwest

Sat 5/178:35 amSTL - AUS

Nonstop2h 05mSouthwest

Deal found 4/10

$223

Sat 8/306:30 amAUS - STL

1 stop5h 02mDelta

Tue 9/25:40 pmSTL - AUS

1 stop5h 20mDelta

Deal found 4/9

$231

Wed 4/306:00 amAUS - STL

1 stop4h 26mAmerican Airlines

Fri 5/25:27 pmSTL - AUS

1 stop5h 32mAmerican Airlines

Deal found 4/10

$233

Tue 5/134:31 pmAUS - STL

3 stops24h 14mMultiple Airlines

Sat 5/1710:10 amSTL - AUS

1 stop12h 53mMultiple Airlines

Deal found 4/10

$285

Sat 8/302:15 pmAUS - STL

1 stop4h 43mUnited Airlines

Sun 8/3111:05 amSTL - AUS

1 stop4h 24mUnited Airlines

Deal found 4/9

$289

Fri 5/305:35 pmAUS - STL

2 stops29h 29mAlaska Airlines

Tue 6/36:52 amSTL - AUS

2 stops16h 46mAlaska Airlines

Deal found 4/10

$748

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 11, 2025.

Tue 5/136:45 amAUS - STL

1 stop27h 14mFrontier

Sat 5/178:15 pmSTL - AUS

1 stop15h 40mFrontier

Deal found 4/10

$180

Tue 5/136:20 amAUS - STL

Nonstop2h 05mSouthwest

Sat 5/178:35 amSTL - AUS

Nonstop2h 05mSouthwest

Deal found 4/10

$223

Sat 5/107:14 amAUS - STL

1 stop26h 01mSpirit Airlines

Sat 5/1710:10 amSTL - AUS

1 stop12h 53mSpirit Airlines

Deal found 4/10

$230

Sat 8/306:30 amAUS - STL

1 stop5h 02mDelta

Tue 9/25:40 pmSTL - AUS

1 stop5h 20mDelta

Deal found 4/9

$231

Wed 4/303:48 pmAUS - STL

1 stop6h 40mAmerican Airlines

Sat 5/311:06 amSTL - AUS

1 stop4h 43mAmerican Airlines

Deal found 4/10

$233

Tue 5/134:31 pmAUS - STL

3 stops24h 14mMultiple Airlines

Sat 5/1710:10 amSTL - AUS

1 stop12h 53mMultiple Airlines

Deal found 4/10

$285

Thu 8/282:15 pmAUS - STL

1 stop4h 43mUnited Airlines

Sun 8/318:10 amSTL - AUS

2 stops9h 19mUnited Airlines

Deal found 4/9

$306

Fri 5/305:35 pmAUS - STL

2 stops29h 29mAlaska Airlines

Tue 6/36:52 amSTL - AUS

2 stops16h 46mAlaska Airlines

Deal found 4/10

$748

Last-minute flights from Austin to St. Louis
Discover last-minute flight deals from Austin to St. Louis. Data last updated April 11, 2025 and is based on user searches.

Thu 4/106:20 pmAUS - STL

1 stop5h 09mDelta

Sat 4/124:30 pmSTL - AUS

1 stop7h 56mDelta

Deal found 4/10

$904

Thu 4/179:47 amAUS - STL

1 stop13h 59mFrontier

Thu 4/249:55 pmSTL - AUS

1 stop16h 19mFrontier

Deal found 4/10

$200

Thu 4/176:45 amAUS - STL

1 stop5h 00mSouthwest

Thu 4/2410:10 amSTL - AUS

Nonstop2h 10mSouthwest

Deal found 4/10

$429

Sat 4/192:08 pmAUS - STL

1 stop6h 42mUnited Airlines

Sun 4/206:30 amSTL - AUS

1 stop5h 18mUnited Airlines

Deal found 4/10

$434

Mon 4/219:08 pmAUS - STL

1 stop20h 07mMultiple Airlines

Wed 4/235:41 pmSTL - AUS

1 stop25h 20mMultiple Airlines

Deal found 4/10

$358

Wed 4/303:48 pmAUS - STL

1 stop6h 40mAmerican Airlines

Sat 5/311:06 amSTL - AUS

1 stop4h 43mAmerican Airlines

Deal found 4/10

$233

Fri 5/211:39 amAUS - STL

2 stops12h 07mUnited Airlines

Mon 5/53:43 pmSTL - AUS

1 stop7h 16mUnited Airlines

Deal found 4/10

$330

Tue 5/136:45 amAUS - STL

1 stop27h 14mFrontier

Sat 5/178:15 pmSTL - AUS

1 stop15h 40mFrontier

Deal found 4/10

$180

Tue 5/136:20 amAUS - STL

Nonstop2h 05mSouthwest

Sat 5/178:35 amSTL - AUS

Nonstop2h 05mSouthwest

Deal found 4/10

$223

Tue 5/134:31 pmAUS - STL

3 stops24h 14mMultiple Airlines

Sat 5/1710:10 amSTL - AUS

1 stop12h 53mMultiple Airlines

Deal found 4/10

$285

Fri 5/305:35 pmAUS - STL

2 stops29h 29mAlaska Airlines

Tue 6/36:52 amSTL - AUS

2 stops16h 46mAlaska Airlines

Deal found 4/10

$748

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 11, 2025.

Wed 5/147:14 amAUS - STL

1 stop26h 01mSpirit Airlines

Deal found 4/10

$95

Tue 5/136:45 amAUS - STL

1 stop27h 14mFrontier

Deal found 4/10

$96

Tue 5/136:20 amAUS - STL

Nonstop2h 05mSouthwest

Deal found 4/10

$100

Wed 5/215:00 amAUS - STL

1 stop4h 54mAmerican Airlines

Deal found 4/10

$105

Sat 5/106:06 pmAUS - STL

1 stop3h 57mUnited Airlines

Deal found 4/10

$110

Fri 6/66:08 pmAUS - STL

1 stop5h 18mDelta

Deal found 4/10

$134

Wed 5/147:14 amAUS - STL

3 stops35h 27mMultiple Airlines

Deal found 4/10

$161

Tue 5/138:45 amAUS - STL

2 stops15h 14mAlaska Airlines

Deal found 4/10

$227

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

Tue 5/13

6:45 am-9:59 am

1 stop27h 14m

Lambert-St Louis

Sat 5/17

8:15 pm-11:55 am

1 stop15h 40m

$180

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Tue 5/13

6:20 am-8:25 am

Nonstop2h 05m

Lambert-St Louis

Sat 5/17

8:35 am-10:40 am

Nonstop2h 05m

$223

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Wed 4/30

3:48 pm-10:28 pm

1 stop6h 40m

Lambert-St Louis

Sat 5/3

11:06 am-3:49 pm

1 stop4h 43m

$233

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Tue 5/13

4:31 pm-4:45 pm

3 stops24h 14m

Lambert-St Louis

Sat 5/17

10:10 am-11:03 pm

1 stop12h 53m

$285

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Fri 5/2

11:39 am-11:46 pm

2 stops12h 07m

Lambert-St Louis

Mon 5/5

3:43 pm-10:59 pm

1 stop7h 16m

$330

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Fri 5/30

5:35 pm-11:04 pm

2 stops29h 29m

Lambert-St Louis

Tue 6/3

6:52 am-11:38 pm

2 stops16h 46m

$748

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Wed 5/14

7:14 am-9:15 am

1 stop26h 01m

$95

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Tue 5/13

6:45 am-9:59 am

1 stop27h 14m

$96

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Tue 5/13

6:20 am-8:25 am

Nonstop2h 05m

$100

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

Wed 5/21

5:00 am-9:54 am

1 stop4h 54m

$105

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Showing 1-10 of 14 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*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	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 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

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,851 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,279 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,911 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,636 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 6 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 Frontier. Our recent data shows that you can find tickets from as low as $180 on this airline. Additional options worth looking into are Southwest and Spirit Airlines, starting at $223 and $230 round-trip. You may be able to fly from Austin to St. Louis for 45% 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 Spirit 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 $282, our data shows the cheapest flight currently is $118. When looking at the most popular route, (Austin Bergstrom - Lambert-St Louis), you can expect to pay $211 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$278	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$194	Average$329	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$237	Average$338	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 5/14. 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 11, 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 11, 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 4, 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 11, 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.

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Alternative routes for 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 11, 2025.