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$379+ Cheap flights from St. Louis (STL) to Vienna (VIE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — VIE
Mar 26 — Apr 21
Thu 3/26
Thu 4/2
1 adult, Economy
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Cheap flight deals from St. Louis to Vienna

Cheapest flights from St. Louis to Vienna
Explore the most affordable flight options available from St. Louis to Vienna. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 24, 2026.

This Booking.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/84:05 pm
STL
-
VIE
2 stops23h 35m
Multiple Airlines
Wed 4/158:00 am
VIE
-
STL
1 stop12h 25m
Multiple Airlines
Deal found 2/22$588
This Flighttix deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:05 pm
STL
-
VIE
2 stops34h 05m
Multiple Airlines
Tue 4/149:25 am
VIE
-
STL
2 stops18h 43m
Multiple Airlines
Deal found 2/20$592
This Flighttix deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:05 pm
STL
-
VIE
2 stops23h 35m
Air Canada
Wed 4/296:00 am
VIE
-
STL
2 stops16h 24m
Air Canada
Deal found 2/23$593
This Gotogate deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/84:05 pm
STL
-
VIE
2 stops23h 35m
Air Canada
Wed 4/1511:00 am
VIE
-
STL
2 stops35h 24m
Air Canada
Deal found 2/22$596
This FlightHub deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/274:05 pm
STL
-
VIE
2 stops34h 05m
Air Canada
Tue 5/511:00 am
VIE
-
STL
1 stop16h 25m
Air Canada
Deal found 2/23$607
This Booking.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:40 pm
STL
-
VIE
2 stops30h 55m
Air Canada
Tue 4/1411:00 am
VIE
-
STL
2 stops17h 08m
Air Canada
Deal found 2/20$611
This United Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:10 am
STL
-
VIE
1 stop16h 05m
United Airlines
Tue 5/510:30 am
VIE
-
STL
1 stop17h 38m
United Airlines
Deal found 2/23$613
This Air Canada deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/124:05 pm
STL
-
VIE
2 stops23h 35m
Air Canada
Tue 4/2111:00 am
VIE
-
STL
2 stops35h 24m
Air Canada
Deal found 2/21$615
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2311:25 am
STL
-
VIE
2 stops18h 55m
United Airlines
Tue 3/3110:50 am
VIE
-
STL
1 stop30h 38m
United Airlines
Deal found 2/21$616
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/124:05 pm
STL
-
VIE
2 stops34h 05m
Air Canada
Wed 4/2211:00 am
VIE
-
STL
2 stops17h 08m
Air Canada
Deal found 2/21$617
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:00 am
STL
-
VIE
2 stops15h 10m
United Airlines
Tue 4/1410:30 am
VIE
-
STL
1 stop17h 38m
United Airlines
Deal found 2/20$618

Find flight deals from St. Louis to Vienna

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Vienna (VIE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$588
(Flighttix)

One-way from

$379
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$523
Provider with most accurate pricing for Lambert-St Louis-Vienna Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Vienna Intl flights.
Search Deals
From Lambert-St Louis to Vienna Intl
Search Deals
One-way flight from Lambert-St Louis to Vienna Intl
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($265 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Vienna that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 24, 2026.
Use the filters below to find and compare flights from St. Louis to Vienna that are best for you.

Fly from

St. Louis

Fly to

Vienna

Route

Depart

Return

Price

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Mon 3/23

11:25 am-12:20 pm

2 stops18h 55m

Vienna Intl

Tue 3/31

10:50 am-10:28 am

1 stop30h 38m

$616

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sun 4/5

6:33 pm-6:20 pm

2 stops16h 47m

Vienna Intl

Sun 4/12

7:05 pm-10:59 pm

2 stops34h 54m

$731

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sun 4/5

3:30 pm-2:15 pm

1 stop15h 45m

Vienna Intl

Sun 4/12

6:10 am-1:25 pm

2 stops14h 15m

$747

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Thu 3/19

1:39 pm-4:10 pm

2 stops20h 31m

Vienna Intl

Tue 3/24

6:50 am-11:58 pm

2 stops23h 08m

$775

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 3/27

11:25 am-8:45 am

2 stops15h 20m

Vienna Intl

Mon 4/6

10:30 am-9:08 pm

1 stop17h 38m

$835

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 3/27

11:25 am-8:45 am

2 stops15h 20m

Vienna Intl

Sun 4/5

10:30 am-10:56 pm

1 stop19h 26m

$935

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sun 5/17

9:14 am-8:15 am

1 stop16h 01m

Vienna Intl

Wed 5/27

7:00 am-1:25 pm

1 stop13h 25m

$1,023

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Mon 6/1

7:30 am-8:20 am

1 stop17h 50m

Vienna Intl

Sun 6/7

10:30 am-12:11 pm

2 stops32h 41m

$1,040

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Thu 6/18

6:00 am-8:20 am

2 stops19h 20m

Vienna Intl

Fri 6/26

10:30 am-3:46 pm

2 stops36h 16m

$1,044

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 6/19

7:25 am-8:20 am

1 stop17h 55m

Vienna Intl

Fri 6/26

10:30 am-12:21 pm

1 stop32h 51m

$1,053

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Showing 1-10 of 20 results
1
2

Compare providers for flights from St. Louis to Vienna

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Vienna in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Vienna flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Vienna flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Vienna flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Vienna flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Vienna flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Vienna

Have a flexible travel schedule? Discover the best time to fly to Vienna from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Vienna

What is the cheapest month to book a flight from St. Louis to Vienna?

Currently, February is the cheapest month in which you can book a flight from St. Louis to Vienna (average of $503). Flying from St. Louis to Vienna in June is currently the most expensive (average of $1,099). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Vienna

Get insights into the airlines that provide service to Vienna. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vienna. Reviews last updated February 24, 2026.
Read reviews from past customers who have flown United Airlines, Air Canada, and Lufthansa from St. Louis to Vienna. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,344 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,344 reviews
United Airlines
7.4
Good
9,344 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Air Canada
7.1
Good
10,743 reviews
United Airlines
7.4
Good
9,344 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,808 reviews
United Airlines
7.4
Good
9,344 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Vienna. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Vienna?

    A quick flight from St. Louis to Vienna can take about 15h 45m. United Airlines provides one of the quickest options available for as low as $747. St. Louis and Vienna are separated by a distance of 4949 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Vienna round-trip?

    Lufthansa, at $503, was found to be the cheapest airline from St. Louis to Vienna.Alternate airlines to your destination round-trip include United Airlines and Air Canada. You may be able to fly from St. Louis to Vienna for 46% less than the average price by searching for these airlines.

  • Can I find deals for flights from St. Louis to Vienna that include hotel bookings?

    Yes. In addition to deals on St. Louis to Vienna flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Vienna?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Vienna.

  • Can I find deals for business class flights from St. Louis to Vienna?

    Yes. Cheapflights offers flight deals from St. Louis to Vienna by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Vienna (average of $503). Flying from St. Louis to Vienna in June is currently the most expensive (average of $1,099). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Vienna?

Book flights to Vienna if you plan to visit one of these locations
Amstetten
Melk

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Vienna

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Vienna flights
St. Louis to Salzburg flights

Top 3 airlines flying from St. Louis to Vienna

Discover the top 3 airlines that operate flights from St. Louis to Vienna. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$503Average$855FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$572Average$912FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$645Average$1,011FlexibilityNo cancel feeOn-time67%

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