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Cheap flights from Austin to St. Louis from $62

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 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Austin to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from Austin to St. Louis that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Austin to St. Louis.

Cheap last minute flights

Planning a quick getaway from Austin to St. Louis? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to St. Louis, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Austin to St. Louis

Find recent round-trip train or bus tickets from Austin to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
9:42 am - 11:46 pmAUS-STL
14h 04m1 stop
1:16 pm - 3:42 pmSTL-AUS
26h 26m1 stop
$190Frontier
Find Deal
Tue, Apr 1 - Thu, Apr 3
4:14 pm - 9:16 amAUS-STL
17h 02m1 stop
8:31 pm - 3:05 pmSTL-AUS
18h 34m1 stop
$194Frontier
Find Deal
Tue, Jan 21 - Fri, Jan 24
8:25 am - 3:43 pmAUS-STL
7h 18m1 stop
4:40 pm - 12:35 amSTL-AUS
7h 55m1 stop
$231Delta
Find Deal
Wed, Feb 5 - Wed, Feb 12
10:55 am - 12:55 pmAUS-STL
2h 00mnonstop
2:45 pm - 5:00 pmSTL-AUS
2h 15mnonstop
$240Southwest
Find Deal
Wed, Feb 5 - Wed, Feb 12
5:15 am - 12:16 pmAUS-STL
7h 01m2 stops
4:36 pm - 9:15 pmSTL-AUS
4h 39m1 stop
$242United Airlines
Find Deal
Thu, Feb 6 - Wed, Feb 12
7:00 am - 11:46 amAUS-STL
4h 46m1 stop
10:59 am - 5:31 pmSTL-AUS
6h 32m1 stop
$243Delta
Find Deal
Sat, Feb 22 - Sat, Mar 1
3:05 pm - 8:20 pmAUS-STL
5h 15m1 stop
11:05 am - 1:20 pmSTL-AUS
2h 15mnonstop
$247Southwest
Find Deal
Fri, Feb 7 - Sun, Feb 9
9:35 am - 8:02 pmAUS-STL
10h 27m2 stops
4:36 pm - 9:15 pmSTL-AUS
4h 39m1 stop
$306United Airlines
Find Deal
Wed, Feb 5 - Wed, Feb 12
6:05 am - 11:24 amAUS-STL
5h 19m1 stop
5:37 pm - 10:47 pmSTL-AUS
5h 10m1 stop
$344American Airlines
Find Deal
Sat, Mar 15 - Wed, Mar 19
3:48 pm - 7:25 pmAUS-STL
3h 37m1 stop
5:37 pm - 9:24 pmSTL-AUS
3h 47m1 stop
$414American Airlines
Find Deal
Tue, Mar 11 - Sat, Mar 15
6:29 pm - 9:06 amAUS-STL
14h 37m1 stop
$62Frontier
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Thu, Apr 3
4:14 pm - 9:16 amAUS-STL
17h 02m1 stop
$65Frontier
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Tue, Feb 11
5:11 pm - 5:43 pmAUS-STL
24h 32m1 stop
$69Frontier
Find Deal
Tue, Feb 18
6:40 am - 8:40 amAUS-STL
2h 00mnonstop
$106Southwest
Find Deal
Tue, Feb 18
5:30 pm - 10:06 pmAUS-STL
4h 36m1 stop
$111United Airlines
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Tue, May 6
5:30 am - 12:00 pmAUS-STL
6h 30m1 stop
$116Delta
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Wed, Mar 19
3:00 pm - 6:20 pmAUS-STL
3h 20m1 stop
$117Southwest
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Mon, Feb 10
7:00 am - 3:38 pmAUS-STL
8h 38m2 stops
$121United Airlines
Find Deal
Tue, Feb 11
5:30 am - 11:46 amAUS-STL
6h 16m1 stop
$129Delta
Find Deal
Thu, Feb 6
6:40 pm - 10:56 pmAUS-STL
4h 16m1 stop
$235American Airlines
Find Deal
Fri, Jan 17
12:50 pm - 7:30 pmAUS-STL
6h 40m1 stop
2:50 pm - 8:35 pmSTL-AUS
5h 45m1 stop
$624Southwest
Find Deal
Sat, Jan 11 - Wed, Jan 15
7:05 am - 5:22 pmAUS-STL
10h 17m2 stops
2:55 pm - 11:06 pmSTL-AUS
8h 11m1 stop
$654United Airlines
Find Deal
Sat, Jan 11 - Sat, Jan 18
2:20 pm - 12:27 amAUS-STL
10h 07m2 stops
6:30 am - 3:26 pmSTL-AUS
8h 56m2 stops
$659United Airlines
Find Deal
Sat, Jan 11 - Wed, Jan 15
4:05 pm - 7:34 pmAUS-STL
27h 29m1 stop
6:46 pm - 3:09 pmSTL-AUS
20h 23m1 stop
$740Frontier
Find Deal
Sat, Jan 11 - Mon, Jan 13
5:55 pm - 10:20 pmAUS-STL
4h 25m1 stop
1:02 pm - 9:15 pmSTL-AUS
8h 13m2 stops
$764United Airlines
Find Deal
Sat, Jan 11 - Mon, Jan 13
7:00 am - 3:38 pmAUS-STL
8h 38m2 stops
1:02 pm - 9:15 pmSTL-AUS
8h 13m2 stops
$769United Airlines
Find Deal
Sat, Jan 11 - Mon, Jan 13
10:55 am - 12:55 pmAUS-STL
2h 00mnonstop
2:45 pm - 5:00 pmSTL-AUS
2h 15mnonstop
$240Southwest
Find Deal
Wed, Feb 5 - Wed, Feb 12
6:40 am - 8:40 amAUS-STL
2h 00mnonstop
11:05 am - 1:20 pmSTL-AUS
2h 15mnonstop
$264Southwest
Find Deal
Fri, Feb 7 - Sun, Feb 9
3:15 pm - 5:15 pmAUS-STL
2h 00mnonstop
2:45 pm - 5:00 pmSTL-AUS
2h 15mnonstop
$359Southwest
Find Deal
Tue, Jan 21 - Fri, Jan 24
6:50 am - 8:55 amAUS-STL
2h 05mnonstop
6:35 pm - 8:35 pmSTL-AUS
2h 00mnonstop
$369Southwest
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Thu, Jul 3 - Tue, Jul 8
9:20 am - 11:20 amAUS-STL
2h 00mnonstop
9:05 pm - 11:20 pmSTL-AUS
2h 15mnonstop
$387Southwest
Find Deal
Sat, Mar 15 - Wed, Mar 19
4:35 pm - 6:40 pmAUS-STL
2h 05mnonstop
10:45 pm - 1:00 amSTL-AUS
2h 15mnonstop
$422Southwest
Find Deal
Wed, Mar 12 - Sun, Mar 16
5:00 am - 7:00 amAUS-STL
2h 00mnonstop
6:55 pm - 9:10 pmSTL-AUS
2h 15mnonstop
$452Southwest
Find Deal
Thu, Mar 13 - Fri, Mar 14
9:20 am - 11:20 amAUS-STL
2h 00mnonstop
10:00 pm - 12:15 amSTL-AUS
2h 15mnonstop
$536Southwest
Find Deal
Sat, Mar 22 - Sat, Mar 29

Frontier flights from Austin to St. Louis

Our best Frontier deals on Austin to St. Louis flight tickets
Frontier
Apr 1
AUS9:42 amAustin Bergstrom
14h 04m
1 stop
STL11:46 pmLambert-St Louis
Apr 3
STL1:16 pmLambert-St Louis
26h 26m
1 stop
AUS3:42 pmAustin Bergstrom
Frontier
Jan 21
AUS4:14 pmAustin Bergstrom
17h 02m
1 stop
STL9:16 amLambert-St Louis
Jan 24
STL8:31 pmLambert-St Louis
18h 34m
1 stop
AUS3:05 pmAustin Bergstrom
Frontier
Jan 21
AUS4:14 pmAustin Bergstrom
17h 02m
1 stop
STL9:16 amLambert-St Louis
Jan 25
STL7:09 pmLambert-St Louis
24h 17m
1 stop
AUS7:26 pmAustin Bergstrom

Delta flights from Austin to St. Louis

Our best Delta deals on Austin to St. Louis flight tickets
Delta
Feb 5
AUS8:25 amAustin Bergstrom
7h 18m
1 stop
STL3:43 pmLambert-St Louis
Feb 12
STL4:40 pmLambert-St Louis
7h 55m
1 stop
AUS12:35 amAustin Bergstrom
Delta
Feb 22
AUS7:00 amAustin Bergstrom
4h 46m
1 stop
STL11:46 amLambert-St Louis
Mar 1
STL10:59 amLambert-St Louis
6h 32m
1 stop
AUS5:31 pmAustin Bergstrom
Delta
Jan 31
AUS5:45 pmAustin Bergstrom
5h 29m
1 stop
STL11:14 pmLambert-St Louis
Feb 2
STL7:15 amLambert-St Louis
6h 15m
1 stop
AUS1:30 pmAustin Bergstrom

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, February 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 $307. The month of July is another great option to travel to St. Louis, with average flight prices from Austin averaging around $308.

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 $310. 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 $400. 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 evening is the least expensive time of day to depart. momondo users have found prices as low as $238 when looking at flights departing in the evening. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $346 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?

The best time to book a flight to St. Louis from Austin is 46 days out, which is when prices tend to be around $332. In the past 72 hours, momondo users found flights from Austin to St. Louis for as low as $160.

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

There are 1 cabin classes 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 2025, prices for Austin to St. Louis flights are approximately 90% 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

$62

Fastest flight time

2h 00m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Austin in the past 72 hours is $62. The best round-trip flight deal from Austin to St. Louis found on momondo in the last 72 hours is $190.
The fastest flight from Austin to St. Louis takes 2h 00m
Direct flights go from Austin to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • 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
United AirlinesPriceFrom $194Free CancellationRating
7.4
8,939 reviews
Search United Airlines flights
American AirlinesPriceFrom $201Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $216Free CancellationRating
8.0
8,499 reviews
Search Delta flights
SouthwestPriceFrom $237Free CancellationRating
8.1
4,648 reviews
Search Southwest flights
  • Southwest Flights From Austin to St. Louis

    Southwest flight deals from Austin to St. Louis start from $237 round-trip. Over the 10 Southwest flights for this route in a normal week, average airfare is usually $342 round-trip - but some users have found much cheaper deals with momondo.


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.


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