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STL - AUS

$85 Find cheap flights from St. Louis to Austin

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 6/2. 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
Sat 6/15
Sat 6/22

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 42,211,976 times on KAYAK, and here is why:

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

 
These are the cheapest deals for flights from St. Louis to Austin currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from St. Louis to Austin

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Austin.

Recent one-way flight deals from St. Louis to Austin

Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Austin found on KAYAK recently.

Recent last minute flight deals from St. Louis to Austin

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from St. Louis to Austin.

Recent direct flight deals from St. Louis to Austin

The latest deals for direct flights from St. Louis to Austin so you can sit back and relax without the need for a layover.

Cheap bus & train deals from St. Louis to Austin

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

All round-trip flight deals to Austin

The cheapest plane tickets to Austin found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:29 pm - 1:04 pmSTL-AUS
17h 35m1 stop
9:23 pm - 10:42 amAUS-STL
13h 19m1 stop
$146Frontier
Find Deal
Sat, Jun 15 - Thu, Jun 20
3:53 pm - 8:14 amSTL-AUS
16h 21m1 stop
7:18 pm - 10:18 amAUS-STL
15h 00m1 stop
$150Frontier
Find Deal
Sun, Aug 18 - Sat, Aug 24
5:36 pm - 8:15 amSTL-AUS
14h 39m1 stop
9:16 am - 9:29 amAUS-STL
24h 13m1 stop
$152Frontier
Find Deal
Fri, Jun 7 - Tue, Jun 11
5:38 pm - 12:34 amSTL-AUS
6h 56m1 stop
5:59 pm - 11:54 pmAUS-STL
5h 55m1 stop
$247American Airlines
Find Deal
Sat, Jun 29 - Fri, Jul 12
6:04 am - 11:19 amSTL-AUS
5h 15m1 stop
12:15 pm - 6:40 pmAUS-STL
6h 25m1 stop
$250American Airlines
Find Deal
Sun, Jul 14 - Sat, Jul 20
8:05 am - 3:20 pmSTL-AUS
7h 15m2 stops
5:15 am - 9:51 amAUS-STL
4h 36m1 stop
$431United Airlines
Find Deal
Mon, Aug 19 - Fri, Aug 23
5:30 pm - 11:33 amSTL-AUS
18h 03m2 stops
6:08 pm - 10:17 pmAUS-STL
4h 09m1 stop
$481United Airlines
Find Deal
Fri, Jul 26 - Sun, Jul 28
7:41 pm - 5:42 pmSTL-AUS
22h 01m2 stops
6:00 am - 11:59 pmAUS-STL
17h 59m1 stop
$540Alaska Airlines
Find Deal
Fri, Jun 7 - Tue, Jun 11
7:00 am - 10:56 pmSTL-AUS
15h 56m2 stops
7:59 pm - 1:27 pmAUS-STL
17h 28m2 stops
$546Alaska Airlines
Find Deal
Thu, Oct 31 - Mon, Nov 4
6:30 am - 2:00 pmSTL-AUS
7h 30m1 stop
5:30 am - 12:58 pmAUS-STL
7h 28m1 stop
$620Delta
Find Deal
Fri, Aug 30 - Sun, Sep 8
11:22 pm - 8:16 amSTL-AUS
8h 54m1 stop
$85Frontier
Find Deal
Sun, Jun 2
7:29 pm - 12:49 pmSTL-AUS
17h 20m1 stop
$86Frontier
Find Deal
Wed, Jun 5
7:29 pm - 6:28 pmSTL-AUS
22h 59m1 stop
$89Frontier
Find Deal
Fri, Aug 30
7:30 pm - 5:29 pmSTL-AUS
21h 59m2 stops
Sun, Jun 2
6:20 pm - 11:09 amSTL-AUS
16h 49m2 stops
Sun, May 26
5:43 am - 11:35 amSTL-AUS
5h 52m1 stop
$186American Airlines
Find Deal
Sun, Nov 10
8:12 pm - 9:10 amSTL-AUS
36h 58m3 stops
$194Spirit Airlines
Find Deal
Thu, Jun 6
7:00 am - 11:29 pmSTL-AUS
16h 29m2 stops
$248Alaska Airlines
Find Deal
Sun, Nov 10
7:31 pm - 6:59 pmSTL-AUS
23h 28m2 stops
$264Alaska Airlines
Find Deal
Fri, Aug 30
6:00 am - 3:12 pmSTL-AUS
9h 12m2 stops
$293American Airlines
Find Deal
Wed, Jun 5
8:04 pm - 8:16 amSTL-AUS
12h 12m1 stop
8:09 pm - 10:13 amAUS-STL
14h 04m1 stop
$348Frontier
Find Deal
Sat, May 18 - Sun, May 19
8:45 pm - 8:16 amSTL-AUS
11h 31m1 stop
8:09 pm - 10:13 amAUS-STL
14h 04m1 stop
$358Frontier
Find Deal
Fri, May 17 - Sun, May 19
4:20 pm - 10:47 pmSTL-AUS
6h 27m1 stop
1:25 pm - 7:30 pmAUS-STL
6h 05m1 stop
$383American Airlines
Find Deal
Sat, May 18 - Wed, May 22
12:53 pm - 6:54 pmSTL-AUS
6h 01m1 stop
6:45 am - 11:48 amAUS-STL
5h 03m1 stop
$386Delta
Find Deal
Sat, May 18 - Wed, May 22
2:00 pm - 8:00 pmSTL-AUS
6h 00m1 stop
6:15 am - 1:10 pmAUS-STL
6h 55m1 stop
$392American Airlines
Find Deal
Fri, May 17 - Wed, May 22
5:01 pm - 7:33 pmSTL-AUS
26h 32m1 stop
9:16 am - 9:36 amAUS-STL
24h 20m1 stop
$434Frontier
Find Deal
Sun, May 19 - Tue, May 21
8:15 am - 10:22 amSTL-AUS
26h 07m2 stops
4:49 pm - 10:46 amAUS-STL
17h 57m1 stop
Sun, May 19 - Tue, May 21
12:45 pm - 8:06 amSTL-AUS
19h 21m3 stops
4:49 pm - 10:46 amAUS-STL
17h 57m1 stop
Sun, May 19 - Tue, May 21
4:05 pm - 9:54 amSTL-AUS
17h 49m1 stop
4:35 pm - 5:29 pmAUS-STL
24h 54m2 stops
$567Spirit Airlines
Find Deal
Fri, May 17 - Wed, May 22
4:05 pm - 9:54 amSTL-AUS
17h 49m1 stop
9:57 am - 6:40 pmAUS-STL
32h 43m3 stops
$589Spirit Airlines
Find Deal
Fri, May 17 - Wed, May 22
7:42 pm - 6:35 pmSt. Louis Gateway Station-
Austin Train Station
22h 53mnonstop
9:24 am - 7:30 amAustin Train Station-
St. Louis Gateway Station
22h 06mnonstop
$182Amtrak
Find Deal
Thu, Jun 20 - Sun, Jun 23

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 Sunday, 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 January, where tickets cost $238 on average. On the other hand, the most expensive months are April and March, where the average cost of tickets is $344 and $335 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 29 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 $146 on Frontier, followed by American Airlines ($247). One-way flight deals have also been found from as low as $85 on Frontier and from $186 on American Airlines.

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

Each day, there are between 4 and 7 nonstop flights that take off from St. Louis and land in Austin, with an average flight time of 2h 01m. The most common departure time is 2:00 pm and most flights take off in the morning. Each week, there are 41 flights. The most frequent day of departure is Sunday, when 17% 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 9:00 pm and lands at 10:55 pm.

Good to know

Low season

January

High season

March

Cheapest flight

$85
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 12% increase in price.
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 $85 for a one-way ticket and $146 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 $253 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 9157 reviews
8.6Crew
8.2Boarding
7.3Food
7.9Comfort
7.3Entertainment
Airline reviews

There was an older male crew member that was very rude to me when doing the last checks before pulling back from the terminal. There is a polite way to tell someone to put their bag under the seat. It was Mother’s Day and my mom has recently passed so it was a tough morning for me in general. There was no need to make for the snide remark “ I don’t know how many times we have said this already” as you walked away. I had held it together all morning and this interaction brought me to tears. love Alaska Airlines and this is the first time I’ve had a negative experience.

8.0 ExcellentMeghan, May 2024SEA - JFK
Read more about Alaska Airlines reviews

There was an older male crew member that was very rude to me when doing the last checks before pulling back from the terminal. There is a polite way to tell someone to put their bag under the seat. It was Mother’s Day and my mom has recently passed so it was a tough morning for me in general. There was no need to make for the snide remark “ I don’t know how many times we have said this already” as you walked away. I had held it together all morning and this interaction brought me to tears. love Alaska Airlines and this is the first time I’ve had a negative experience.

Alway a a breeze! And great mountain views on left side of plane during entire flight!

another delayed flight. no one at the desk kept us updated. we found out by an email as the desk was not even staffed up to expected takes off

They canceled my flight going back to SF after I was at the airport. Wanted me to take a flight 14 hours later. Not a happy camper.

I didn’t like not knowing my seat till I got to the airport - and my boarding group was F (last).

I have never flown Alaska Airlines before & would recommend them to anyone& will use again

Flight itself was great! Snacks are never really good; in this case, the "butter braids" and Biscotti cookie were both hard. The attendants' were good. We felt we found a good deal on the cost. The check-in process was very smooth: Alaskan Airlines always does a good job. Boarding was pretty timely, too. We fly Alaskan whenever possible and will continue to do so.

Wasn’t an Alaska plane so the seats were very thinly padded- glad I wasn’t going further.

Service was excellent. Staff at check in cleared hurdles for me so I could travel with my service animal.

Clean plane, relatively spacious in Main Cabin. One experience: I'm 79, with torn rotator cuff (R shoulder). I asked for help getting my carryon into the overhead bin and was told that the staff "does not help with this" (or some such phrase. On previous flights, help has been offered (and accepted). I prevailed on a fellow passenger for this. Also, why not board back to front?? Would this not help in the speed of boarding?

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

Boarding was unorganized. They expected passengers to ask people to move their assigned seat they paid for in order to sit together. The seats even in comfort are smaller than other airlines and the flight attendants appeared not to be well prepared

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

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

Even though we left CMI late, we mostly made up the time.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

this is starting to seem like an american airlines standard. delayed flights and fake apologies… getting tired of it

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.

Over an hour delay in departure but I was notified beforehand. Another delay on tarmac upon arrival at LGA. We ended up departing the plane almost 2 hours later than expected

I fly Frontier because it’s affordable. I understand that the seats are tight and not the most comfortable…but that’s part of it. The problem with this flight was that there was a group of travelers directly behind me at the back of the plane who were ridiculously loud and obnoxious the entire flight. I’m pretty sure they were drunk and I could periodically smell an odd odor that I believe was one of them using a smokeless vape pen. The stewards had to remind them to keep quiet during the pre-flight instruction, but that was it. They never said another thing to them for the rest of the flight. It was a miserable.

I checked a bag because it was $5 less than carry on. They managed to lose my bag on a 2.5 hr direct flight! Frontier has no airport staff at baggage claim to help. As soon as I got home around 11 pm I tried to use their online system to file the claim for lost bag - system wouldn't take the # on my baggage claim ticket - said it was not the correct number. Also said that I had not checked a bag, which wasn't true - even my online boarding pass showed that I had checked a bag. Wasted about an hour on that process with no luck. Tried again in the morning - same thing. So tried online chat with Frontier bot - waited 35-40" twice to be connected to a baggage agent and it never happened. Eventually drove to PDX after work and waited 2 hrs for the Frontier ticket agents to arrive prior to the next Frontier flight out of PDX and FINALLY got some help from one of them, to take me to lost luggage area where I was able to retrive my bag. Probably took 4-5 hrs. of my time and endless frustration to get my bag. This was my first -- and LAST -- experience flying Frontier Airlines. Check-in was also extremely difficult and time consuming. The flight itself (and staff) were fine but everything else about the experience was a total disaster! The fact that Frontier literally has NO WAY to connect to a human voice for customer service (in this case for lost luggage) is the WORST!!!!!

Frontier is a crappy airline nothing about it is honest

I didn't get to do this flight l, hard to review

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Didn't like anything!! Horrible flight. Small seating area and hard seats. Butt was sore after 2 hour flight to Seattle No entertainment or free refreshments No wifi or USB charging receptacles to charge phone entoute like other airliners Luggage rates were 3 times as much as competitors. Difficult to navigate online luggue process to pre pay before flight Overall bad experience WILL NEVER RIDE OR RECOMMEND FRONTIER TO FRIENDS OR FAMILY MEMBERS!!! THIS IS A SHAME!! MOST MESERIBLE FLIGHT OF MY LIFE!! AND I THOUGHT SPIRIT WAS 👎 YOU GOT THEM BEAD HANDS DOWN!!

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

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.
6/2Sun
1 stopFrontier
8h 54mSTL-AUS
$85
6/5Wed
1 stopFrontier
17h 20mSTL-AUS
$86
8/30Fri
1 stopFrontier
22h 59mSTL-AUS
$89
6/2Sun
2 stops
21h 59mSTL-AUS
$124
5/26Sun
2 stops
16h 49mSTL-AUS
$151
11/10Sun
1 stopAmerican Airlines
5h 52mSTL-AUS
$186
6/6Thu
3 stopsSpirit Airlines
36h 58mSTL-AUS
$194
11/10Sun
2 stopsAlaska Airlines
16h 29mSTL-AUS
$248
8/30Fri
2 stopsAlaska Airlines
23h 28mSTL-AUS
$264
6/5Wed
2 stopsAmerican Airlines
9h 12mSTL-AUS
$293

Search by stops

Search by airline

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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.
5/18Sat
multi-stopFrontier
12h 12mSTL-AUS
5/19Sun
multi-stopFrontier
14h 04mAUS-STL
$348
5/17Fri
multi-stopFrontier
11h 31mSTL-AUS
5/19Sun
multi-stopFrontier
14h 04mAUS-STL
$358
5/18Sat
multi-stopAmerican Airlines
6h 27mSTL-AUS
5/22Wed
multi-stopAmerican Airlines
6h 05mAUS-STL
$383
5/18Sat
multi-stopDelta
6h 01mSTL-AUS
5/22Wed
multi-stopDelta
5h 03mAUS-STL
$386
5/17Fri
multi-stopAmerican Airlines
6h 00mSTL-AUS
5/22Wed
multi-stopAmerican Airlines
6h 55mAUS-STL
$392
5/19Sun
multi-stopFrontier
26h 32mSTL-AUS
5/21Tue
multi-stopFrontier
24h 20mAUS-STL
$434
5/19Sun
multi-stop
26h 07mSTL-AUS
5/21Tue
multi-stop
17h 57mAUS-STL
$500
5/19Sun
multi-stop
19h 21mSTL-AUS
5/21Tue
multi-stop
17h 57mAUS-STL
$507
5/17Fri
multi-stopSpirit Airlines
17h 49mSTL-AUS
5/22Wed
multi-stopSpirit Airlines
24h 54mAUS-STL
$567
5/17Fri
multi-stopSpirit Airlines
17h 49mSTL-AUS
5/22Wed
multi-stopSpirit Airlines
32h 43mAUS-STL
$589

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St. Louis - Austin Flights

Departure:

St. Louis (undefined)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
Trains$1820h 00m