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Cheap flights from Austin to St. Louis from $60

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to St. Louis departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Austin to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:30 am - 3:53 pm
AUS
-
STL
7h 23m
1 stop
Frontier Logo
3:49 pm - 9:51 am
STL
-
AUS
18h 02m
1 stop
$128Frontier
mié., feb. 25 - sáb., feb. 28
Multiple Airlines Logo
3:30 pm - 6:51 am
AUS
-
STL
15h 21m
1 stop
Multiple Airlines Logo
3:49 pm - 4:04 pm
STL
-
AUS
24h 15m
1 stop
$136Multiple Airlines
vie., feb. 27 - lun., mar. 2
Multiple Airlines Logo
4:59 pm - 10:27 pm
AUS
-
STL
29h 28m
1 stop
Multiple Airlines Logo
3:49 pm - 4:04 pm
STL
-
AUS
24h 15m
1 stop
$143Multiple Airlines
mar., feb. 24 - mar., mar. 3
Multiple Airlines Logo
4:35 pm - 6:51 am
AUS
-
STL
14h 16m
1 stop
Multiple Airlines Logo
3:49 pm - 4:04 pm
STL
-
AUS
24h 15m
1 stop
$148Multiple Airlines
jue., feb. 26 - lun., mar. 2
Multiple Airlines Logo
7:25 am - 10:27 pm
AUS
-
STL
15h 02m
2 stops
Multiple Airlines Logo
8:17 pm - 3:53 pm
STL
-
AUS
19h 36m
1 stop
$151Multiple Airlines
mar., feb. 10 - sáb., feb. 14
Multiple Airlines Logo
8:27 pm - 11:25 pm
AUS
-
STL
26h 58m
1 stop
Multiple Airlines Logo
4:54 pm - 7:32 pm
STL
-
AUS
26h 38m
1 stop
$156Multiple Airlines
mar., mar. 31 - lun., abr. 6
Multiple Airlines Logo
3:30 pm - 6:51 am
AUS
-
STL
15h 21m
1 stop
Multiple Airlines Logo
3:49 pm - 8:53 pm
STL
-
AUS
29h 04m
2 stops
$157Multiple Airlines
vie., feb. 27 - mar., mar. 3
Multiple Airlines Logo
7:15 am - 6:51 am
AUS
-
STL
23h 36m
2 stops
Multiple Airlines Logo
3:49 pm - 4:04 pm
STL
-
AUS
24h 15m
1 stop
$158Multiple Airlines
mar., feb. 24 - mar., mar. 3
Frontier Logo
6:55 am - 12:50 pm
AUS
-
STL
5h 55m
1 stop
Frontier Logo
2:51 pm - 12:16 am
STL
-
AUS
9h 25m
1 stop
$160Frontier
lun., feb. 9 - sáb., feb. 14
Multiple Airlines Logo
7:15 am - 10:27 pm
AUS
-
STL
15h 12m
2 stops
Multiple Airlines Logo
12:36 pm - 9:51 am
STL
-
AUS
21h 15m
1 stop
$168Multiple Airlines
mié., feb. 25 - sáb., feb. 28

United Airlines flights from Austin to St. Louis

Our best United Airlines deals on Austin to St. Louis flight tickets
United Airlines
May 21
AUS6:45 amAustin Bergstrom
5h 26m
1 stop
STL12:11 pmLambert-St Louis
May 24
STL9:23 amLambert-St Louis
5h 17m
1 stop
AUS2:40 pmAustin Bergstrom
$274
United Airlines
Feb 24
AUS1:10 pmAustin Bergstrom
7h 55m
1 stop
STL9:05 pmLambert-St Louis
Feb 25
STL2:45 pmLambert-St Louis
6h 06m
1 stop
AUS8:51 pmAustin Bergstrom
$299
United Airlines
Feb 24
AUS9:43 amAustin Bergstrom
10h 43m
2 stops
STL8:26 pmLambert-St Louis
Feb 25
STL6:00 amLambert-St Louis
7h 13m
1 stop
AUS1:13 pmAustin Bergstrom
$304

Southwest flights from Austin to St. Louis

Our best Southwest deals on Austin to St. Louis flight tickets
Southwest
Feb 24
AUS5:35 amAustin Bergstrom
2h 00m
STL7:35 amLambert-St Louis
Mar 3
STL10:25 amLambert-St Louis
2h 20m
AUS12:45 pmAustin Bergstrom
$209
Southwest
Feb 24
AUS5:35 amAustin Bergstrom
2h 00m
STL7:35 amLambert-St Louis
Mar 3
STL6:00 amLambert-St Louis
4h 05m
1 stop
AUS10:05 amAustin Bergstrom
$219
Southwest
Feb 27
AUS5:05 amAustin Bergstrom
2h 00m
STL7:05 amLambert-St Louis
Mar 3
STL10:25 amLambert-St Louis
2h 20m
AUS12:45 pmAustin Bergstrom
$229

momondo Fare Finder

 
Customize your flight search to find flights from Austin to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated enero 28, 2026.
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

mié. 2/25

8:30 am-3:53 pm

1 stop7h 23m

Lambert-St Louis

sáb. 2/28

3:49 pm-9:51 am

1 stop18h 02m

$128

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

vie. 2/27

3:30 pm-6:51 am

1 stop15h 21m

Lambert-St Louis

lun. 3/2

3:49 pm-4:04 pm

1 stop24h 15m

$136

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

mar. 2/24

4:59 pm-10:27 pm

1 stop29h 28m

Lambert-St Louis

mar. 3/3

3:49 pm-4:04 pm

1 stop24h 15m

$143

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

jue. 2/26

4:35 pm-6:51 am

1 stop14h 16m

Lambert-St Louis

lun. 3/2

3:49 pm-4:04 pm

1 stop24h 15m

$148

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

mar. 2/10

7:25 am-10:27 pm

2 stops15h 02m

Lambert-St Louis

sáb. 2/14

8:17 pm-3:53 pm

1 stop19h 36m

$151

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

mar. 3/31

8:27 pm-11:25 pm

1 stop26h 58m

Lambert-St Louis

lun. 4/6

4:54 pm-7:32 pm

1 stop26h 38m

$156

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

vie. 2/27

3:30 pm-6:51 am

1 stop15h 21m

Lambert-St Louis

mar. 3/3

3:49 pm-8:53 pm

2 stops29h 04m

$157

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

mar. 2/24

7:15 am-6:51 am

2 stops23h 36m

Lambert-St Louis

mar. 3/3

3:49 pm-4:04 pm

1 stop24h 15m

$158

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

lun. 2/9

6:55 am-12:50 pm

1 stop5h 55m

Lambert-St Louis

sáb. 2/14

2:51 pm-12:16 am

1 stop9h 25m

$160

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

mié. 2/25

7:15 am-10:27 pm

2 stops15h 12m

Lambert-St Louis

sáb. 2/28

12:36 pm-9:51 am

1 stop21h 15m

$168

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Austin to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, October is the cheapest month to fly from Austin to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $271. The month of April is another great option to travel to St. Louis, with average flight prices from Austin averaging around $303.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $303. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $468. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Austin in the morning is the least expensive time of day to depart. momondo users have found prices as low as $333 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $361 per ticket.

What is the cheapest Austin Bergstrom to Lambert-St Louis flight route?

Fly from Austin Bergstrom to Lambert-St Louis for the best Austin Bergstrom - Lambert-St Louis flight prices

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

You are more likely to see cheaper flights to St. Louis from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $326 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Austin for as low as $216 on momondo.

What cabin class options are available on Austin Bergstrom to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Austin Bergstrom to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Austin to St. Louis flight prices changed over time?

As of January 2026, prices for Austin to St. Louis flights are approximately 22% more expensive when compared to flights at the same time last year.

When to book flights from Austin to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to St. Louis (AUS to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to St. Louis

Best Price Found

$234

Fastest flight time

2h 00m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Austin in the past 72 hours is $234. The best round-trip flight deal from Austin to St. Louis found on momondo in the last 72 hours is $269.
The fastest flight from Austin to St. Louis takes 2h 00m
Direct flights go from Austin to St. Louis on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Southwest.
There is 1 airport in St. Louis. From Austin there are direct flights to Lambert-St Louis (STL).
Search flight deals

  • How far is Austin Bergstrom to Lambert-St Louis by plane?

    The distance between Austin Bergstrom and Lambert-St Louis is about 718.3 mi. Typically, this will take 2h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to Lambert-St Louis Airport?

    Prices for flights from Austin Bergstrom Airport to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Austin Bergstrom Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Austin Bergstrom Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Austin Bergstrom Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Austin to St. Louis?

  • What is the most popular airline from Austin to St. Louis?

Best airlines flying from Austin to St. Louis

Compare and see reviews for airlines that fly from Austin to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $160Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
SouthwestPriceFrom $199Free CancellationRating
8.0
4,268 reviews
Search Southwest flights
United AirlinesPriceFrom $200Free CancellationRating
7.4
9,206 reviews
Search United Airlines flights
American AirlinesPriceFrom $260Free CancellationRating
7.2
11,198 reviews
Search American Airlines flights

  • Southwest Flights From Austin to St. Louis

    Southwest flight deals from Austin to St. Louis start from $199 round-trip. Over the 10 Southwest flights for this route in a normal week, average airfare is usually $325 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
Collinsville
Fenton
St. Peters
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Glencoe
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Austin to St. Louis?

Finding the right flight to St. Louis from Austin is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from Austin to St. Louis with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to St. Louis from Austin with this policy.

How can momondo help me find flights from Austin to St. Louis?

momondo provides multiple filters to help you find the best flight to St. Louis from Austin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Austin to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Austin to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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vie. 2/27
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