STL - VIE

$441 Find Cheap Flights from St. Louis to Vienna

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 Vienna departing on 8/14. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Vienna, 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 Vienna, as well as popular online travel agencies
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Flights Deals

Cheap Flights from St. Louis to Vienna (STL-VIE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Vienna 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 Vienna

Sun, Sep 7 - Tue, Sep 23
Air Canada Logo
1:30 pm - 8:35 amSTL-VIE
12h 05m1 stop
Air Canada Logo
11:00 am - 7:57 pmVIE-STL
15h 57m1 stop
$641Air Canada
Find Deal
Sun, Sep 7 - Tue, Sep 23
Air Canada Logo
1:30 pm - 12:20 pmSTL-VIE
15h 50m2 stops
Air Canada Logo
7:00 am - 7:57 pmVIE-STL
19h 57m2 stops
$661Air Canada
Find Deal
Sun, Sep 7 - Tue, Sep 23
Air Canada Logo
1:30 pm - 8:35 amSTL-VIE
12h 05m1 stop
Air Canada Logo
10:30 am - 2:19 pmVIE-STL
34h 49m2 stops
$672Air Canada
Find Deal
Sun, Sep 7 - Tue, Sep 23
Air Canada Logo
1:30 pm - 10:40 pmSTL-VIE
26h 10m2 stops
Air Canada Logo
10:30 am - 2:19 pmVIE-STL
34h 49m2 stops
$676Air Canada
Find Deal
Sun, Sep 7 - Tue, Sep 23
United Airlines Logo
9:15 am - 8:20 amSTL-VIE
16h 05m1 stop
United Airlines Logo
10:30 am - 7:38 pmVIE-STL
16h 08m1 stop
$691United Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 2
United Airlines Logo
1:30 pm - 12:20 pmSTL-VIE
15h 50m2 stops
United Airlines Logo
10:30 am - 6:23 pmVIE-STL
14h 53m1 stop
$692United Airlines
Find Deal
Fri, Nov 28 - Sun, Dec 7
Lufthansa Logo
3:50 pm - 1:10 pmSTL-VIE
14h 20m1 stop
Lufthansa Logo
8:00 am - 1:55 pmVIE-STL
12h 55m1 stop
$732Lufthansa
Find Deal
Tue, Aug 26 - Tue, Sep 2
 Logo
4:00 pm - 7:55 pmSTL-VIE
20h 55m2 stops
 Logo
5:55 am - 7:38 pmVIE-STL
20h 43m3 stops
Sun, Sep 7 - Tue, Sep 23
Iberia Logo
9:56 am - 3:00 pmSTL-VIE
22h 04m2 stops
Iberia Logo
7:00 am - 8:32 pmVIE-STL
20h 32m2 stops
$799Iberia
Find Deal
Fri, Oct 3 - Sun, Oct 26
 Logo
1:30 pm - 8:20 amSTL-VIE
59h 50m2 stops
 Logo
6:00 am - 2:55 pmVIE-STL
14h 55m1 stop
Booking Insights

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

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

How much is a round-trip flight from St. Louis to Vienna?

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

The average price of all round-trip flights from St. Louis to Vienna clicked on KAYAK for each day over the last 12 months.

When flying from St. Louis to Vienna, you should consider leaving on a Monday and avoid Saturdays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Thursdays and the most expensive ones on Wednesdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Vienna, 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 Vienna is February, where tickets cost $638 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,542 and $1,328 respectively.

Good to know

Low seasonFebruary
Cheapest flight$441
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from St. Louis to Vienna

When to book flights from St. Louis to Vienna

Are your dates flexible? Find out the best times to travel from St. Louis to Vienna 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 Vienna

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

    In the last 3 days, the lowest price for a flight from St. Louis to Vienna was $441 for a one-way ticket and $641 for a round-trip.

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

    Yes, you’ll need a passport to travel to Vienna from St. Louis.

  • Which airports will I be using when flying from St. Louis to Vienna?

    St. Louis and Vienna are both served by 1 main airport. You will leave St. Louis from Lambert-St Louis and will be arriving at Vienna Intl.

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

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Vienna?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between St. Louis and Vienna, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Vienna, Austrian Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Vienna are Austrian Airlines and United Airlines. With an average price for the route of $1,297 and an overall rating of 7.6, Austrian Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $985 and an overall rating of 7.4.

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

    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 Vienna.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Vienna 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 Vienna?

    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 Vienna with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and VIE 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 Vienna?

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

Reviews of the top 4 airlines serving from St. Louis to Vienna

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Vienna. 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 Vienna? 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.
7.6
Austrian AirlinesOverall score based on 823 reviews
6.8Food
7.3Comfort
7.6Boarding
8.1Crew
6.8Entertainment
Airline reviews

Austrian Airlines help and service was fine, but Kayak misled us into believing we had purchased a Business Class ticket. In fact, the tickets were only upgraded Coach Class tickets with luggage restrictions that belonged to the Coach Class. Very disappointed! Paid over $$$$ 9K for the two tickets. Very disappointing!

4.0 OkayAnonymous, Jul 2025EWR - VIE
Read more Austrian Airlines reviews

Austrian Airlines help and service was fine, but Kayak misled us into believing we had purchased a Business Class ticket. In fact, the tickets were only upgraded Coach Class tickets with luggage restrictions that belonged to the Coach Class. Very disappointed! Paid over $$$$ 9K for the two tickets. Very disappointing!

Quick and organized boarding process, friendly staff but not as many snacks and drinks as the previous flight overnight

Landing was a little hard. Food was not great My prior review was for the flight to nyc too

Landing was a little hard. Food was not great. No options.

Great staff, efficient and knowledgeable. Very helpful with others and considerate towards those with children

WiFi would have been nice and some more powerful usb ports, available ports could not keep my phone’s charge much less charge the phone.

Not so good. I paid for a preference economic seat, and I couldn’t incline it back because it was blocked. They explained me that because is the last before emergency exit. The company new that but it was not explained in the seat selection

It was on time. Snacks could have been provided for free.

Tirana was crazy check in and getting bussed to another gate. Both Germany stops were intensive customs but organized, but that wasn't the airlines problem. The crews were fabulous on the planes. The announcements were not easy to understand in English, slurred speech. Customs inthe US were fast. We waited for luggage, three later arriving planes had their luggage and left before us

Business class old style from 10 years ago. Ok for short flights but nor for 12 hours journey. The passenger near the window have to jump over the passenger seat aisle side or wake him up to upright the seat. That’s not the business class that you expect on long night flight. Seats are not so confortable. And believe it or not no wifi!

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

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.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Both flights are delayed so I rate the whole experience as mediocre.

I booked my flight months ago, and checked-in online about 12 hours before the flight. I received an email confirmation of check-in. I had no subsequent communication from Air Canada after my original booking. After arriving at the airport three hours before the flight, as instructed, I waited 90 minutes for an agent to appear to check my bag. I was informed that my flight had been canceled many weeks before, and that flight was no longer being run!! I showed a copy of my check-in confirmation, but no explanation could be found. I was placed on standby for the next flight and the connection. Luckily, those flights were not full and I arrived at my destination. I double checked my email, but I received no update about the flight from Air Canada until the day of the flight.

I had a good experience. I liked being informed about the status of my luggage

Very bad service the way back we was on the way for r two days very bad condition and waiting for luggage till now

I was forcefully re-routed to another destination and was delayed a total of 8hours. I have still not received my bags, no one is taking responsibility. The agents at the airport lied to me that I will get to my destination same time as my previous flight where I was forcefully re-routed from.

Flight was delayed by 1.5hrs. Once inside, people had their small handbags on the storage. The crew (male guy) was not helpful in making some space in the storage. Instead, he asked few bags to be checked-in and it was not a great experience. No attempt to help but just followed the things with a straight face. People had their literally small bags and he wouldnt not move from one storage to another even if there was space and would not let us do i as well. Once flight was on, they ran out of Orange juice, really running out of orange juice when the temp were 32.degrees outside. didnt made the sense. Onasking for a extra snack, he made a face as if he was giving me out of his pocket. if the flight was delayed, there could have an attempt to provide something extra incase people did asked.

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

United had no (zero) record of our flight. It took over an hour of us standing in line with surly employee while others waited to get resolved. I have never experienced such poor service and poor empathy.

We had a very long delay. First the inbound flight took a while, then maintenance, they “fixed it” to then do boarding and leave the gate, and waste a lot of time to have to go back to the gate and eventually deplane. Had to wait for a new aircraft, wait for a gate, and do the whole thing again. Instead of leaving at 9:50am we left until past 1. I could’ve not woken up at 5am, or spend some more time with my family if they gave more grace period of time between flights to give some time in case of any issues. But they have to make all and every dollar possible

Aircraft had technical issues. After 3 hours of trying to resolve, flight was cancelled. Was booked on a flight leaving 12 hours after intended departure. Now on 4 flights instead of 2 and a day late to my destination.

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

Hate their old flights, boatding, food and services. Very poor quality

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Seating was average for a first class seat. It very modern. I expected better.

Flight was a little late. The crew was courteous, food ok

Bad! Disaster!! The LH419 was cancelled after 4 hrs on board with no AC and no toilets

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

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