$382 Find Cheap Flights from St. Louis to Austria - Compare and Save

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 Austria departing on 9/14. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Austria

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Austria

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Vienna
Vienna1 stop$794
Salzburg
Salzburg1 stop$1,053
Innsbruck
Innsbruck2 stops$954
Vienna
Vienna1 stop$794
Salzburg
Salzburg1 stop$1,053
Innsbruck
Innsbruck2 stops$954

Book Cheap St. Louis to Austria Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Austria 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 for you by selecting your travel dates on KAYAK.

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

Wed, Nov 25 - Sat, Dec 5
Austrian Airlines Logo
1:08 pm - 8:05 am
STL
-
VIE
11h 57m
1 stop
Austrian Airlines Logo
10:30 am - 7:40 pm
VIE
-
STL
16h 10m
1 stop
$794Austrian Airlines
Wed, Nov 25 - Sat, Dec 5
Multiple Airlines Logo
1:08 pm - 8:05 am
STL
-
VIE
11h 57m
1 stop
Multiple Airlines Logo
10:40 am - 3:41 pm
VIE
-
STL
36h 01m
2 stops
$801Multiple Airlines
Wed, Nov 25 - Sat, Dec 5
Air Canada Logo
7:33 am - 8:45 am
STL
-
VIE
18h 12m
2 stops
Air Canada Logo
10:40 am - 3:41 pm
VIE
-
STL
36h 01m
2 stops
$809Air Canada
Wed, Nov 4 - Sun, Nov 15
Multiple Airlines Logo
4:05 pm - 7:30 pm
STL
-
VIE
20h 25m
2 stops
Multiple Airlines Logo
7:00 am - 1:45 pm
VIE
-
STL
13h 45m
1 stop
$812Multiple Airlines
Wed, Nov 4 - Sun, Nov 15
Multiple Airlines Logo
1:08 pm - 8:05 am
STL
-
VIE
11h 57m
1 stop
Multiple Airlines Logo
8:00 am - 1:45 pm
VIE
-
STL
12h 45m
1 stop
$817Multiple Airlines
Wed, Nov 4 - Sun, Nov 15
Lufthansa Logo
7:04 pm - 10:40 pm
STL
-
VIE
20h 36m
2 stops
Lufthansa Logo
8:00 am - 9:13 pm
VIE
-
STL
20h 13m
2 stops
$822Lufthansa
Sat, Dec 5 - Sat, Dec 12
Air Canada Logo
4:05 pm - 9:10 am
STL
-
VIE
58h 05m
2 stops
Air Canada Logo
10:40 am - 8:48 am
VIE
-
STL
29h 08m
2 stops
$824Air Canada
Sat, Dec 5 - Sat, Dec 12
United Airlines Logo
7:04 pm - 10:30 am
STL
-
VIE
32h 26m
2 stops
United Airlines Logo
10:30 am - 11:25 pm
VIE
-
STL
19h 55m
1 stop
$835United Airlines
Sat, Dec 5 - Sat, Dec 12
United Airlines Logo
7:04 pm - 10:30 am
STL
-
VIE
32h 26m
2 stops
United Airlines Logo
10:30 am - 11:25 pm
VIE
-
STL
19h 55m
1 stop
$836United Airlines
Sun, Aug 9 - Sun, Aug 16
Lufthansa Logo
3:30 pm - 9:45 am
STL
-
SZG
11h 15m
1 stop
Lufthansa Logo
10:10 am - 1:25 pm
SZG
-
STL
34h 15m
1 stop
$1,053Lufthansa
Booking Insights

KAYAK's insights & trends for St. Louis to Austria flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Austria, 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 Austria is March, when tickets cost $471 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,134 and $1,019 respectively.

Good to know

Low seasonJuly
Cheapest flight$382
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 32% increase in price.
Flight from St. Louis to Vienna

FAQs - booking Austria flights

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

    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 Austria.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Austria 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 Austria?

    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 from St. Louis to Austria with an airline and back with another airline.

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

    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 from St. Louis to Austria up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Austria

 
Need help choosing which airline to fly with from St. Louis to Austria? 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.
7.4
United AirlinesOverall score based on 9895 reviews
6.6Food
7.1Entertainment
7.3Comfort
8.1Crew
7.7Boarding
Airline reviews

Fine not above and beyond as I had a connection that was delayed due to maintenance

8.0 Excellentrob, Feb 2026
MCI - IAD
Read more United Airlines reviews

Fine not above and beyond as I had a connection that was delayed due to maintenance

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Flight was canceled 12 hours before take-off due to “weather”

We were told our seats were switched which put us in row 1 instead of 12. We were not able to keep our personal items with us. This caused us not to be able to have our gum to pop our ears and we weren’t able to get our iPads out due to the seat belt sign never turning off.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

Perfect airline, super friendly, great service, tasty food. Would fly again.

It was a short flight. Plenty of room on the plane. It was also extremely clean.

I arrived late in Frankfurt and I had to catch my flight to Vienna and I was running late because when I was landing the flight to Vienna was boarding. I had to go through immigration and then I had to wait in a long line to take a bus to a terminal where my flight to Vienna was taking off. However, I truly didn't think I would make it. I was literally running through the whole airport and when I stopped to ask at one of the Austrian Airlines gates they were rude because they didn't have the time to support me.

They were late and I missed my flight for Chicago. Terrible experience with Austrian airline this time.

They separated me from my kids We were checked in to fly from Vienna to Frankfurt and Washington DC final destination but separated my wife and kids sent them to Barcelona instead then Washington DC They end up traveling for 26 hours Horrible experience Never Austrian Airlines/Lufthansa again!

The flight was delayed more than 1.5 hours. Phone calls to united did not satisfy our need to get to Chicago to met family for fight to europe. I was told the flight was booked thru luftansa and united could not make adjustments. When call luftansa they were unaware of the significant delay on the united flight out of mci. They would not authorize a flight change. We went to the airport, as if we would be flying as scheduled, United checked us in, as if our flight would leave as scheduled. We took our bag to be checked to the baggage drop and the agent their confirmed our flight was significantly delayed. She worked for 30 min to get us on another flight. We ended up flying to Denver then to Munich. The rest of the family that flew to Chicago for our meet up and flight to Europe ended up flying to Munich alone. We meet up in Munich for our last leg to luxembourg. In luxembourg we learned on bag was scheduled on our delayed flight. The flight was canceled and we did not receive the bag in lux. We filed a lost back claim. Now 3 days later we STILL do not have the bag. It is apparently in luxembourg and they maybe tried to deliver, however the names on the door of the air b&b do not match the name on the baggage claim so the French speaking delivery person called no one could understand him so he took the bag and left. My brother, traveling with me under a different reservation , has been without essentials for 3 days. One or all of us has stayed "home" each day waiting on the bag. Today was my turn. Delivery window was 10:30 to 2:30. No attempt to knock or ring bell. After the hang up call, my brother called me and told me to check the door. There was nothing there. No sign of attempted delivery, no delivery man, nothing. Being unable to change clothes and having family members take turns waiting on a bag that never comes has ruined this family vacation. Thanks United/Luftansa

The flight left an hour late and no explanation. Food was basically a few snacks out of bags and tiny cup of soda. Crew was pretty friendly.

The The check in process was terrible on both ends. It was not clear if we should use the United, Lufthansa, or Aragrant number. It took over an hour to check in on the front end – and then at return the Lufthansa online check in failed multiple times and only after two calls to their phone number could we accomplish the task. The link to the Kayak site provided no access for check in. This difficulty and ambiguity on both ends will affect our interest in using Kayak for foreign travel in the future.

You lost my bag then waiting on the phone for 30 mins for customer service just to be directed to call another number

Boarding staff, crew and food needs a lot of improvement!! It was awful Aircraft was old with minimal legspace

Everything you need to know for your flight from St. Louis to Austria

Information on your arrival and departure airports