$379 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 9/16. 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

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Cheap Flights from St. Louis to Austria

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Vienna
Vienna2 stops$757
Salzburg
Salzburg2 stops$1,119
Innsbruck
Innsbruck2 stops$959
Vienna
Vienna2 stops$757
Salzburg
Salzburg2 stops$1,119
Innsbruck
Innsbruck2 stops$959

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

Sun, Dec 6 - Thu, Dec 10
Air Canada Logo
4:15 pm - 9:10 am
STL
-
VIE
33h 55m
2 stops
Air Canada Logo
10:35 am - 12:20 pm
VIE
-
STL
32h 45m
2 stops
$757Air Canada
Sun, Dec 6 - Thu, Dec 10
United Airlines Logo
3:40 pm - 7:30 pm
STL
-
VIE
20h 50m
1 stop
United Airlines Logo
10:35 am - 12:20 pm
VIE
-
STL
32h 45m
2 stops
$772United Airlines
Wed, Aug 26 - Fri, Sep 4
Multiple Airlines Logo
10:25 am - 9:20 am
STL
-
VIE
15h 55m
2 stops
Multiple Airlines Logo
7:40 am - 7:45 pm
VIE
-
STL
19h 05m
2 stops
$839Multiple Airlines
Wed, Aug 26 - Fri, Sep 4
Multiple Airlines Logo
12:10 pm - 8:35 am
STL
-
VIE
13h 25m
1 stop
Multiple Airlines Logo
7:00 am - 1:25 pm
VIE
-
STL
13h 25m
1 stop
$855Multiple Airlines
Thu, Oct 1 - Tue, Oct 6
Air Canada Logo
8:55 am - 8:20 am
STL
-
VIE
16h 25m
1 stop
Air Canada Logo
10:30 am - 8:00 pm
VIE
-
STL
16h 30m
1 stop
$888Air Canada
Sun, Aug 2 - Tue, Aug 18
Multiple Airlines Logo
8:55 am - 8:20 am
STL
-
VIE
16h 25m
1 stop
Multiple Airlines Logo
8:00 am - 1:25 pm
VIE
-
STL
12h 25m
1 stop
$904Multiple Airlines
Thu, Oct 1 - Tue, Oct 6
United Airlines Logo
8:00 am - 8:15 am
STL
-
VIE
17h 15m
1 stop
United Airlines Logo
10:30 am - 2:10 pm
VIE
-
STL
34h 40m
2 stops
$911United Airlines
Thu, Jul 23 - Sun, Aug 2
Lufthansa Logo
1:13 pm - 6:00 pm
STL
-
SZG
21h 47m
2 stops
Lufthansa Logo
2:20 pm - 1:25 pm
SZG
-
STL
30h 05m
1 stop
$1,119Lufthansa
Thu, Jul 23 - Sun, Aug 2
Lufthansa Logo
1:13 pm - 9:30 am
STL
-
SZG
13h 17m
2 stops
Lufthansa Logo
2:20 pm - 3:46 pm
SZG
-
STL
32h 26m
2 stops
$1,123Lufthansa
Fri, Jul 10 - Thu, Jul 16
Emirates Logo
2:57 pm - 2:00 pm
STL
-
SZG
40h 03m
2 stops
Emirates Logo
3:00 pm - 10:45 pm
SZG
-
STL
38h 45m
2 stops
$5,075Emirates
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 August, when the average cost of round-trip tickets is $1,134 and $812 respectively.

Good to know

Low seasonFebruary
Cheapest flight$379
Best time to beat the crowds with an average 48% drop in price.
Most popular time to fly with an average 37% 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 3 airlines serving 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 9828 reviews
8.1Crew
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

2.0 MediocreAnonymous, Jun 2026
ORD - BHM
Read more United Airlines reviews

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Flight cancelled instead of leaving Friday am now, maybe, leaving Sunday

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

1didnt have wheel chair I ordered wheel chair in my ticket flight

Flight was overbooked and seats assigned to multiple passengers. Delay 1 hour to sort out.

Good but I don’t received my bags yet is been 5days still no update

It was pretty straight forward, no glitches or hidden costs

It was a short flight so, everything went smoothly and we got to where we needed to be safely.

Didn’t make it on the flight. Delayed then had to be rebooked, which in turn had me waiting at the airport for another 8 hours before next flight

No TV on the flight. The charging outlet was not working. No food, even a sandwich. The served orange was poor quality.

Selected seats 5 months prior to date. Had email confirmation and seats were not honoured. Family did not sit together

Loved and was pleasantly surprised by the food!! Request Lufthansa to help transiting passengers at Munich (confusion whether to go thru passport control or not).

The flight was comfortable and the staff were helpful and friendly. However, we did not know we were flying PAL until we arrived in Canada, so it was a bit disconcerting. In addition, which port we were leaving from was confusing.

We sat in our seats on the tarmac for almost 3 hours due to storms. They would not give us water or a snack. We were to depart at 7.30 pm and it was about 10.30 when we took off. No dinner until much after that. Beef type noodle dish was terrible with about a teaspoon of beef in it. The breakfast sweet waffle with egg and sausage inside was horrible. An English muffin sandwich would have been much better. Food was the worst in all of our years of traveling the world.

Our screen kept turning off ...3 times...had to get crew attention to turn it on again

They messed up my seat so I didn’t get the one I paid for

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

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

Information on your arrival and departure airports