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STL - AUS

Find cheap flights from St. Louis to Austin from $60

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Austin departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 5/24
Fri 5/31

Search hundreds of travel sites at once for deals on flights to Austin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Austin, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Austin, as well as popular online travel agencies
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

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Cheap flight deals from St. Louis to Austin (STL-AUS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Austin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:04 pm - 8:16 amSTL-AUS
12h 12m1 stop
8:09 pm - 10:13 amAUS-STL
14h 04m1 stop
$108Frontier
Find Deal
Sat, May 18 - Sun, May 19
7:51 pm - 9:54 pmSTL-AUS
26h 03m1 stop
10:43 pm - 10:18 amAUS-STL
11h 35m1 stop
$118Frontier
Find Deal
Wed, May 8 - Sun, May 12
5:35 pm - 8:21 amSTL-AUS
14h 46m1 stop
10:58 pm - 9:59 pmAUS-STL
23h 01m1 stop
$128Frontier
Find Deal
Fri, May 10 - Mon, May 13
2:00 pm - 8:00 pmSTL-AUS
6h 00m1 stop
5:00 am - 10:28 amAUS-STL
5h 28m1 stop
$209American Airlines
Find Deal
Tue, May 21 - Sat, May 25
5:37 am - 10:58 amSTL-AUS
5h 21m1 stop
5:00 am - 9:00 amAUS-STL
4h 00m1 stop
$231American Airlines
Find Deal
Sat, Sep 7 - Sun, Sep 8
8:05 am - 3:20 pmSTL-AUS
7h 15m2 stops
5:15 am - 9:51 amAUS-STL
4h 36m1 stop
$347United Airlines
Find Deal
Tue, Aug 27 - Thu, Aug 29
8:05 am - 3:20 pmSTL-AUS
7h 15m2 stops
5:15 am - 9:51 amAUS-STL
4h 36m1 stop
$465United Airlines
Find Deal
Sat, Sep 7 - Sun, Sep 8
2:34 pm - 12:39 pmSTL-AUS
22h 05m2 stops
7:15 am - 11:59 pmAUS-STL
16h 44m2 stops
$636Alaska Airlines
Find Deal
Tue, Aug 27 - Thu, Aug 29
7:41 pm - 2:14 pmSTL-AUS
18h 33m1 stop
7:15 am - 11:59 pmAUS-STL
16h 44m2 stops
$637Alaska Airlines
Find Deal
Tue, May 28 - Fri, May 31
11:51 am - 5:01 pmSTL-AUS
5h 10m1 stop
5:30 am - 12:58 pmAUS-STL
7h 28m1 stop
$692Delta
Find Deal
Fri, Aug 30 - Sun, Sep 8

Flights from St. Louis to Austin - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Austin to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Austin?

The average price of all flights from St. Louis to Austin clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from St. Louis to Austin, look for departures on Saturdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Austin, Saturday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Austin, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Austin is July, where tickets cost $224 on average. On the other hand, the most expensive months are May and October, where the average cost of tickets is $371 and $366 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Austin, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Austin, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 76 days before departure.

Which airlines provide the cheapest flights from St. Louis to Austin?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from St. Louis to Austin found by KAYAK users in the last 72 hours was for $108 on Frontier, followed by American Airlines ($209). One-way flight deals have also been found from as low as $60 on Frontier and from $97 on Spirit Airlines.

How many flights are there between St. Louis and Austin per day?

Each day, there are between 2 and 4 nonstop flights that take off from St. Louis and land in Austin, with an average flight time of 2h 04m. The most common departure time is 2:00 pm and most flights take off in the morning. Each week, there are 21 flights. The most frequent day of departure is Sunday, when 19% of all weekly flights depart. The fewest flights depart on a Saturday.

What’s the earliest departure time from St. Louis to Austin?

Early birds can take the earliest flight from St. Louis at 7:05 am and will be landing in Austin at 9:10 am.

What’s the latest departure time from St. Louis to Austin?

If you prefer to fly at night, the latest flight from St. Louis to Austin jets off at 8:20 pm and lands at 10:20 pm.

Good to know

Low season

July

High season

March

Cheapest flight

$60
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from St. Louis to Austin

When to book flights from St. Louis to Austin

Are your dates flexible? Find out the best times to travel from St. Louis to Austin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Austin

  • What is the cheapest flight from St. Louis to Austin?

    In the last 3 days, the lowest price for a flight from St. Louis to Austin was $60 for a one-way ticket and $108 for a round-trip.

  • Do I need a passport to fly between St. Louis and Austin?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Austin?

    Only American Airlines offers inflight Wi-Fi service on the St. Louis to Austin flight route.

  • Which aircraft models fly most regularly from St. Louis to Austin?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the St. Louis to Austin flight route.

  • On which days can I fly direct from St. Louis to Austin?

    There are nonstop flights from St. Louis to Austin on a daily basis.

  • Which is the best airline for flights from St. Louis to Austin, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Austin are Delta and Alaska Airlines. With an average price for the route of $278 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $279 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from St. Louis to Austin?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Austin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Austin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Austin from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Austin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Austin with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and AUS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Austin?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Austin from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from St. Louis to Austin?

Find which airlines fly direct from Lambert-St Louis to Austin Bergstrom, which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Austin Bergstrom

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Nonstop returns

Austin Bergstrom to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

Top 5 airlines serving from St. Louis to Austin

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Austin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Austin? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9110 reviews
7.3entertainment
7.9comfort
8.6crew
8.2boarding
7.3food
Airline reviews

Flight was good. Glad it was delayed or I may have missed the connection since I got to Seattle at about the same time my connection was to leave. The snack was a small bag of pretzels and a small soda. Can’t really call that food. There was no entertainment available on the flight.

8.0 ExcellentAnonymous, Apr 2024SEA - TUS
Read more about Alaska Airlines reviews

Flight was good. Glad it was delayed or I may have missed the connection since I got to Seattle at about the same time my connection was to leave. The snack was a small bag of pretzels and a small soda. Can’t really call that food. There was no entertainment available on the flight.

It was much better than expected. Short flight and smaller plane so no entertainment or food.

It was so easy to board using my boarding pass on my iPhone, and I liked what I was given on the plane for food and drink, and everyone was very friendly.

It took around two hours to depart. Just sitting in the tamarack waiting. It impacted my traveling plans in a very dramatic way. When we returned, it took around two hours for us to be able to get our luggage. Ridiculous!!

The messaging about the change in flight destination and options for getting to SFO was poor. There should have been frequent updates. When I spoke to the boarding agent moment before we were supposed to board, he was flippant and offered no help before the announcement was made that transportation would be arranged. It was as poor of an experience that I've ever had.

I thought every thing was good with the acceptation of the long layover between Seattle and the Tampa trip.

My plane ride down landed 20 min late. Boarding at SFO was strange too. The people at the terminal were nice—but, boarding lacked direction, and was confusing . Coming back was worse—the plane was hours behind—and I barely caught the last Bart train back to San Francisco (3 min more and I would have been in trouble). It was a very stressful trip, and it didn’t need to be.

Same as the earlier flight. Bad boarding practices, uncomfortable seats, and no Wi-Fi service.

While the flight and the legroom was good boarding took a long time. The different groups Boarding made no sense as those in the back of the flight boarded last causing delays as people try to find room for their luggage in the upper bins. While there were plenty of seats on the flights We were spaced so that some rows were filled and others were empty. My first flight was very crowded and uncomfortable. On the way back both flights did not have Wi-Fi nor the entertainment package. We were only made aware of this a few hours before the flight. Since the flight was in the morning, I was asleep and was not able to download Books or other media to my phone. This is my first time flying Alaska airlines and I will admit to thinking twice before I do so again.

Our flight was delayed by six hours, our plane never left Portland the night before but the airline didn’t inform anyone till two hours before a six am flight. The plane, our plane never left the west coast! No plane no flight, simply let folks know when you know, not hours and hours later. No one apologized, no one said much of anything, we were just expected to wait quietly and await instructions.

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

They did a fine job. Can't wait to use Delta in the future.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

Seat back monitors and outlets were dead and not working.

Everything was great except for the seat. The backrest would not stay in the upright position.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

Flight delayed about 2 hrs so it made it a VERY late night

It was a crowded flight. They did the best they could.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

It was delayed several hours which delayed our connection in Denver. Not happy.

Ok, but comfort was lacking as the seats were way to small

All good except paid for wifi that did not work

Some of these FA’s need attitude check. Snarky bitches

The plane boarded and deplaned twice before the crew timed out. Flight was 7 hours late departing. Horrible experience!

Got automatically assigned middle seats unless you fork out extra money for a seat assignment, not impressed.

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

Missed the flight because of them and up geting a rental car

Delayd flight out of atl as always miss my conection in dfw no flight untill next day

No problems with flight. Even though I had a short layover in DFW, I was still able to easily make my connection.

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Late boarding to clean plane from previous flight; initial boarding announcement not loud enough; fantastic cabin attendant front of plane

Delayed flight, few announcements with information, no comps, cluster f boarding because zones weren’t spread out and announced loud and repeatedly, staff did their job -nothing more nothing less, annoying kids were speaking and kicking the heck out of the back of my seat and parents weren’t willing to parent… so another typical day of air travel in the US.,

Gossipy flight attendants talked the whole flight about bar hopping and dating.

Turbulence was bad and flight attendants gossiped about going to the bar and dating. Could have better awareness.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Terrible. Seats are bad and the baggage policy is inconsistent

Book cheap flights from St. Louis to Austin

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Austin found on KAYAK in the last 72 hours.
5/8Wed
1 stopFrontier
26h 03mSTL-AUS
$60
5/7Tue
1 stopFrontier
15h 26mSTL-AUS
$70
5/1Wed
1 stopSpirit Airlines
7h 14mSTL-AUS
$97
6/28Fri
1 stopAmerican Airlines
6h 56mSTL-AUS
$119
7/22Mon
1 stopDelta
5h 28mSTL-AUS
$120
5/7Tue
1 stopSpirit Airlines
6h 57mSTL-AUS
$125
5/5Sun
1 stopAmerican Airlines
7h 00mSTL-AUS
$154
5/2Thu
1 stopDelta
7h 31mSTL-AUS
$194
4/30Tue
2 stopsUnited Airlines
9h 26mSTL-AUS
$271
5/17Fri
2 stopsUnited Airlines
18h 14mSTL-AUS
$296

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Last minute flights from St. Louis to Austin

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Austin that are departing in the next 10 days.
4/27Sat
multi-stopFrontier
14h 00mSTL-AUS
4/30Tue
multi-stopFrontier
17h 52mAUS-STL
$257
4/27Sat
multi-stopFrontier
14h 00mSTL-AUS
4/29Mon
multi-stopFrontier
11h 20mAUS-STL
$267
4/27Sat
multi-stopFrontier
14h 00mSTL-AUS
4/28Sun
multi-stopFrontier
11h 35mAUS-STL
$273
4/28Sun
multi-stopFrontier
16h 52mSTL-AUS
4/30Tue
multi-stopFrontier
17h 52mAUS-STL
$327
4/27Sat
multi-stop
14h 00mSTL-AUS
5/4Sat
multi-stop
25h 26mAUS-STL
$382
4/27Sat
multi-stopUnited Airlines
9h 26mSTL-AUS
4/30Tue
multi-stopUnited Airlines
4h 24mAUS-STL
$490
4/27Sat
multi-stop
32h 44mSTL-AUS
4/30Tue
multi-stop
17h 54mAUS-STL
$521
4/27Sat
multi-stopUnited Airlines
9h 26mSTL-AUS
4/29Mon
multi-stopUnited Airlines
7h 18mAUS-STL
$537
4/27Sat
multi-stopAmerican Airlines
6h 28mSTL-AUS
4/28Sun
multi-stopAmerican Airlines
8h 15mAUS-STL
$560
4/27Sat
multi-stopAmerican Airlines
8h 57mSTL-AUS
4/28Sun
multi-stopAmerican Airlines
8h 15mAUS-STL
$566

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St. Louis - Austin Flights

Departure:

St. Louis (STL)United States

Destination:

Austin (AUS)United States

Return flight deals:

Austin - St. Louis

Cabin classes:

$399

Browse destinations:

Compare transportation modes for St. Louis to Austin

Average priceAverage duration
Flights5h 15m
Buses$20625h 35m