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

The Lambert-St Louis to Austin Bergstrom flight path was viewed by 9 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 St. Louis to Austin?

There are many flights that can get you from St. Louis to Austin in 2h 15m. Fly via Southwest or Delta to get the fastest option. The distance between St. Louis and Austin is about 722 mi. This flight may include one or multiple stops.

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

According to our current data, Delta ($98), Frontier ($135), and United Airlines ($167) offers the cheapest pricing from St. Louis to Austin. Users have found that Delta is 68% cheaper than the other options available to this destination.

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

The cheapest airlines for a one-way flight from St. Louis to Austin are Delta ($80), United Airlines ($95), and American Airlines ($98).

In terms of precipitation, rainfall in Austin ranges from 2.1 - 4.2 inches per month. May is typically the wettest month, when rainfall can reach 4.2 in. July is typically the driest time to visit Austin when rainfall is around 2.1 in.

If weather is an important factor for your trip to Austin, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

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

While on average a flight from St. Louis to Austin is generally $263, our data shows the cheapest flight currently is $119. When looking at the most popular route, (Lambert-St Louis - Austin Bergstrom), you can expect to pay $154 for that flight.

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

The most popular airlines flying from St. Louis to Austin are Southwest, American Airlines and United Airlines. Something to consider prior to booking your flight.

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

Most trusted provider : When it comes to deals on St. Louis-Austin 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 St. Louis-Austin 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 St. Louis to Austin?

If you book a flight from St. Louis to Austin, you will be flying from Lambert-St Louis to Austin Bergstrom. Flights to Austin Bergstrom (AUS) from Lambert-St Louis (STL) take 2h 00m for a nonstop flight. There are 3 flights from Lambert-St Louis to Austin per day from 5 airlines.

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

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

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

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

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

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

$64+ Flights from St. Louis to Austin

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

Find cheap flights from St. Louis to Austin 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 Lambert-St Louis to Austin Bergstrom are usually found in September or August, booked 63 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from St. Louis to Austin

Cheapest flights from St. Louis to Austin
Explore the most affordable flight options available from St. Louis to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Wed 12/314:53 pmSTL - AUS

1 stop5h 35mAmerican Airlines

Wed 1/710:30 amAUS - STL

1 stop5h 44mAmerican Airlines

Deal found 12/10

$259

Mon 12/1512:07 pmSTL - AUS

1 stop7h 53mFrontier

Thu 1/16:45 amAUS - STL

1 stop27h 17mFrontier

Deal found 12/11

$263

Wed 12/315:13 pmSTL - AUS

1 stop7h 24mDelta

Wed 1/712:34 pmAUS - STL

1 stop6h 38mDelta

Deal found 12/9

$283

Tue 12/235:16 amSTL - AUS

1 stop3h 59mAmerican Airlines

Tue 12/306:16 pmAUS - STL

1 stop5h 28mAmerican Airlines

Deal found 12/10

$303

Tue 12/3011:51 amSTL - AUS

1 stop13h 07mMultiple Airlines

Wed 1/76:00 amAUS - STL

1 stop16h 33mMultiple Airlines

Deal found 12/9

$306

Wed 12/242:45 pmSTL - AUS

1 stop6h 40mUnited Airlines

Thu 12/256:45 amAUS - STL

1 stop7h 41mUnited Airlines

Deal found 12/10

$332

Wed 12/248:25 pmSTL - AUS

Nonstop2h 10mSouthwest

Thu 12/252:05 pmAUS - STL

1 stop3h 20mSouthwest

Deal found 12/10

$333

Tue 12/3011:51 amSTL - AUS

1 stop13h 07mMultiple Airlines

Tue 1/610:32 amAUS - STL

1 stop23h 30mMultiple Airlines

Deal found 12/9

$334

Tue 12/305:16 amSTL - AUS

1 stop4h 55mAmerican Airlines

Sun 1/47:55 pmAUS - STL

1 stop5h 30mAmerican Airlines

Deal found 12/10

$338

Tue 12/305:20 amSTL - AUS

1 stop5h 00mSouthwest

Mon 1/55:05 amAUS - STL

Nonstop2h 05mSouthwest

Deal found 12/10

$339

Best flights from St. Louis to Austin
Discover carefully curated flight deals from St. Louis to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Tue 1/67:55 pmSTL - AUS

Nonstop2h 15mSouthwest

Wed 1/73:00 pmAUS - STL

Nonstop2h 05mSouthwest

Deal found 12/11

$197

Mon 1/126:00 amSTL - AUS

1 stop7h 57mDelta

Wed 1/215:30 amAUS - STL

1 stop6h 24mDelta

Deal found 12/11

$217

Fri 2/68:22 pmSTL - AUS

2 stops14h 12mMultiple Airlines

Sun 2/88:15 pmAUS - STL

1 stop16h 35mMultiple Airlines

Deal found 12/10

$222

Thu 1/156:00 pmSTL - AUS

1 stop5h 56mUnited Airlines

Mon 1/195:55 pmAUS - STL

1 stop4h 05mUnited Airlines

Deal found 12/11

$227

Thu 1/158:45 pmSTL - AUS

Nonstop2h 15mSouthwest

Mon 1/195:10 amAUS - STL

Nonstop2h 00mSouthwest

Deal found 12/11

$217

Thu 1/229:59 amSTL - AUS

1 stop6h 06mDelta

Sun 1/256:25 pmAUS - STL

1 stop5h 12mDelta

Deal found 12/10

$238

Wed 1/2110:25 amSTL - AUS

Nonstop2h 20mSouthwest

Sun 1/253:00 pmAUS - STL

1 stop5h 20mSouthwest

Deal found 12/10

$223

Thu 1/158:45 pmSTL - AUS

Nonstop2h 15mSouthwest

Sun 1/182:40 pmAUS - STL

1 stop5h 55mSouthwest

Deal found 12/10

$233

Thu 2/198:45 pmSTL - AUS

Nonstop2h 15mSouthwest

Sun 2/225:35 amAUS - STL

2 stops5h 25mSouthwest

Deal found 12/11

$238

Last-minute flights from St. Louis to Austin
Discover last-minute flight deals from St. Louis to Austin. Data last updated December 12, 2025 and is based on user searches.

Tue 1/611:51 amSTL - AUS

1 stop13h 07mMultiple Airlines

Wed 1/76:00 amAUS - STL

1 stop16h 33mMultiple Airlines

Deal found 12/11

$186

Tue 1/67:55 pmSTL - AUS

Nonstop2h 15mSouthwest

Wed 1/73:00 pmAUS - STL

Nonstop2h 05mSouthwest

Deal found 12/11

$197

Wed 1/75:11 pmSTL - AUS

2 stops17h 23mMultiple Airlines

Fri 1/93:01 pmAUS - STL

1 stop19h 01mMultiple Airlines

Deal found 12/11

$171

Thu 1/85:11 pmSTL - AUS

1 stop23h 36mFrontier

Thu 1/157:19 pmAUS - STL

1 stop12h 35mFrontier

Deal found 12/11

$166

Thu 1/85:11 pmSTL - AUS

1 stop23h 36mMultiple Airlines

Thu 1/157:25 amAUS - STL

2 stops15h 09mMultiple Airlines

Deal found 12/11

$176

Tue 1/135:11 pmSTL - AUS

1 stop22h 53mMultiple Airlines

Thu 1/157:19 pmAUS - STL

1 stop12h 35mMultiple Airlines

Deal found 12/11

$157

Fri 1/167:27 pmSTL - AUS

1 stop27h 54mFrontier

Sun 1/181:03 pmAUS - STL

1 stop8h 11mFrontier

Deal found 12/10

$183

Wed 1/213:46 pmSTL - AUS

1 stop6h 45mFrontier

Sun 1/257:26 pmAUS - STL

1 stop13h 55mFrontier

Deal found 12/10

$139

Wed 1/218:22 pmSTL - AUS

2 stops25h 13mMultiple Airlines

Sun 1/257:26 pmAUS - STL

1 stop13h 55mMultiple Airlines

Deal found 12/10

$155

One-way flights from St. Louis to Austin
Search for one-way flight options from St. Louis to Austin. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Sun 2/88:59 amSTL - AUS

1 stop9h 32mFrontier

Deal found 12/10

$64

Wed 1/77:43 pmSTL - AUS

1 stop28h 33mFrontier

Deal found 12/11

$80

Sat 2/73:46 pmSTL - AUS

1 stop7h 25mFrontier

Deal found 12/10

$81

Sat 1/243:46 pmSTL - AUS

1 stop7h 25mFrontier

Deal found 12/10

$82

Tue 1/135:11 pmSTL - AUS

1 stop22h 53mMultiple Airlines

Deal found 12/11

$86

Mon 3/96:00 amSTL - AUS

1 stop10h 03mFrontier

Deal found 12/10

$87

Wed 1/75:11 pmSTL - AUS

2 stops28h 24mMultiple Airlines

Deal found 12/11

$90

Thu 1/85:11 pmSTL - AUS

1 stop23h 36mFrontier

Deal found 12/11

$93

Sun 1/115:11 pmSTL - AUS

2 stops17h 23mMultiple Airlines

Deal found 12/11

$100

Tue 1/65:11 pmSTL - AUS

2 stops31h 47mMultiple Airlines

Deal found 12/9

$102

Sun 1/119:35 amSTL - AUS

1 stop7h 12mFrontier

Deal found 12/11

$103

Tue 2/1011:23 amSTL - AUS

1 stop6h 36mDelta

Deal found 12/10

$104

Find flight deals from St. Louis to Austin

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$139 (Kiwi.com)
One-way from	$64 (Frontier)
Popular in	October
Cheapest in	September
Average price	$350
Good round-trip deal	$259 or less
Good one-way deal	$188 or less

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

Search Deals

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

Search Deals

From Lambert-St Louis to Austin Bergstrom

Search Deals

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

Search Deals

High demand for flights, 2% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

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

Search Deals

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

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Tue 1/6

7:55 pm-10:10 pm

Nonstop2h 15m

Austin Bergstrom

Wed 1/7

3:00 pm-5:05 pm

Nonstop2h 05m

$197

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Mon 1/12

6:00 am-1:57 pm

1 stop7h 57m

Austin Bergstrom

Wed 1/21

5:30 am-11:54 am

1 stop6h 24m

$217

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Thu 1/15

8:45 pm-11:00 pm

Nonstop2h 15m

Austin Bergstrom

Mon 1/19

5:10 am-7:10 am

Nonstop2h 00m

$217

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Fri 2/6

8:22 pm-10:34 am

2 stops14h 12m

Austin Bergstrom

Sun 2/8

8:15 pm-12:50 pm

1 stop16h 35m

$222

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Wed 1/21

10:25 am-12:45 pm

Nonstop2h 20m

Austin Bergstrom

Sun 1/25

3:00 pm-8:20 pm

1 stop5h 20m

$223

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Thu 1/15

6:00 pm-11:56 pm

1 stop5h 56m

Austin Bergstrom

Mon 1/19

5:55 pm-10:00 pm

1 stop4h 05m

$227

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Thu 1/15

8:45 pm-11:00 pm

Nonstop2h 15m

Austin Bergstrom

Sun 1/18

2:40 pm-8:35 pm

1 stop5h 55m

$233

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Thu 1/22

9:59 am-4:05 pm

1 stop6h 06m

Austin Bergstrom

Sun 1/25

6:25 pm-11:37 pm

1 stop5h 12m

$238

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Thu 2/19

8:45 pm-11:00 pm

Nonstop2h 15m

Austin Bergstrom

Sun 2/22

5:35 am-11:00 am

2 stops5h 25m

$238

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Sat 2/7

3:46 pm-11:11 pm

1 stop7h 25m

$80

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 18 results

Compare providers for flights from St. Louis to Austin

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

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
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 St. Louis-Austin flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Austin flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Austin flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Austin 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 St. Louis-Austin 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 St. Louis to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from St. Louis 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 St. Louis to Austin

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

The price you pay for your flight from St. Louis to Austin may vary depending on when you book. For the best chance of a lower fare, look to book 63 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 St. Louis to Austin?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Austin (average of $153). Flying from St. Louis to Austin in June is currently the most expensive (average of $228). 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 STL to AUS?

When flying from St. Louis to Austin, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 9% versus a flight in the afternoon.

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

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

Reviews of airlines servicing Austin

Read reviews from past customers who have flown Southwest, Delta, and United Airlines from St. Louis to Austin. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Southwest

7.9

Good

4,253 reviews

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Delta

7.9

Good

8,008 reviews

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

United Airlines

7.4

Good

9,095 reviews

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

American Airlines

7.2

Good

11,050 reviews

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Frontier

5.8

Fair

3,084 reviews

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

What airports do I use to fly from St. Louis to Austin?
If you book a flight from St. Louis to Austin, you will be flying from Lambert-St Louis to Austin Bergstrom. Flights to Austin Bergstrom (AUS) from Lambert-St Louis (STL) take 2h 00m for a nonstop flight. There are 3 flights from Lambert-St Louis to Austin per day from 5 airlines.
How popular is this St. Louis to Austin flight route?
The Lambert-St Louis to Austin Bergstrom flight path was viewed by 9 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 St. Louis to Austin?
There are many flights that can get you from St. Louis to Austin in 2h 15m. Fly via Southwest or Delta to get the fastest option. The distance between St. Louis and Austin is about 722 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from St. Louis to Austin round-trip?
According to our current data, Delta ($98), Frontier ($135), and United Airlines ($167) offers the cheapest pricing from St. Louis to Austin. Users have found that Delta is 68% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from St. Louis to Austin one-way?
The cheapest airlines for a one-way flight from St. Louis to Austin are Delta ($80), United Airlines ($95), and American Airlines ($98).
What are the cheapest flights from St. Louis to Austin?
While on average a flight from St. Louis to Austin is generally $263, our data shows the cheapest flight currently is $119. When looking at the most popular route, (Lambert-St Louis - Austin Bergstrom), you can expect to pay $154 for that flight.
Can I find deals for flights from St. Louis to Austin that include hotel bookings?
Yes. In addition to deals on St. Louis to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Austin?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Austin.
Can I find deals for business class flights from St. Louis to Austin?
Yes. Cheapflights offers flight deals from St. Louis to Austin 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 St. Louis to Austin?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Austin (average of $153). Flying from St. Louis to Austin in June is currently the most expensive (average of $228). 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.

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Top 5 airlines flying from St. Louis to Austin

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$98	Average$243	FlexibilityNo cancel fee	On-timeN/A
Frontier	Cheapest$135	Average$234	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$167	Average$360	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$176	Average$324	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$199	Average$328	FlexibilityNo cancel fee	On-time63%

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$64+ Cheap flights from St. Louis to Austin (STL - AUS)

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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Austin 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 Lambert-St Louis to Austin Bergstrom are usually found in September or August, booked 63 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from St. Louis to Austin

Cheapest flights from St. Louis to AustinExplore the most affordable flight options available from St. Louis to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Explore the most affordable flight options available from St. Louis to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Find flight deals from St. Louis to Austin

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

Cheapflights Fare Finder

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

Compare providers for flights from St. Louis to Austin

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 St. Louis to Austin in December.

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

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

Cheapflights Insights

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

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

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

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

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

Reviews of airlines servicing Austin

Read reviews from past customers who have flown Southwest, Delta, and United Airlines from St. Louis to Austin. Users can see the overall rating for each airline as well as how each is rated 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 St. Louis to Austin. 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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What are the cheapest flights from St. Louis to Austin?

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Alternative routes for St. Louis to Austin

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Top 5 airlines flying from St. Louis to Austin

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Cheapest flights from St. Louis to Austin
Explore the most affordable flight options available from St. Louis to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.