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$288+ 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — VIE
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap 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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$449
(United Airlines)

One-way from

$288
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$613
Provider with most accurate pricing for Lambert-St Louis-Vienna Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Vienna Intl flights.
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From Lambert-St Louis to Vienna Intl
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One-way flight from Lambert-St Louis to Vienna Intl
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Highest demand for flights based on searches. 22% potential increase in price ($284 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 8, 2026.

This United Airlines deal was found by Cheapflights users on 1/6. 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 4/137:45 amSTL - VIE
1 stop17h 30mUnited Airlines
Fri 4/2410:30 amVIE - STL
2 stops42h 58mUnited Airlines
Deal found 1/6$449
This United Airlines deal was found by Cheapflights users on 1/7. 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.
Sun 1/187:00 amSTL - VIE
1 stop18h 00mUnited Airlines
Tue 2/310:30 amVIE - STL
1 stop20h 29mUnited Airlines
Deal found 1/7$456
This KAYAK deal was found by Cheapflights users on 1/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/109:59 amSTL - VIE
2 stops25h 46mBritish Airways
Wed 4/17:40 amVIE - STL
2 stops22h 18mBritish Airways
Deal found 1/7$461
This Flightnetwork deal was found by Cheapflights users on 1/7. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/188:05 amSTL - VIE
2 stops17h 30mAir Canada
Tue 2/310:40 amVIE - STL
2 stops34h 50mAir Canada
Deal found 1/7$462
This Booking.com deal was found by Cheapflights users on 1/6. 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.
Mon 4/137:45 amSTL - VIE
2 stops17h 50mAir Canada
Fri 4/2410:30 amVIE - STL
2 stops17h 38mAir Canada
Deal found 1/6$466
This United Airlines deal was found by Cheapflights users on 1/7. 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 3/1010:00 amSTL - VIE
2 stops16h 30mUnited Airlines
Wed 4/17:00 amVIE - STL
1 stop13h 25mUnited Airlines
Deal found 1/7$490
This Booking.com deal was found by Cheapflights users on 1/7. 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.
Sat 2/217:41 amSTL - VIE
2 stops18h 04mMultiple Airlines
Sat 2/2810:30 amVIE - STL
1 stop20h 35mMultiple Airlines
Deal found 1/7$513
This Booking.com deal was found by Cheapflights users on 1/7. 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.
Sat 2/214:05 pmSTL - VIE
2 stops34h 05mAir Canada
Sat 2/2810:40 amVIE - STL
2 stops35h 49mAir Canada
Deal found 1/7$516
This United Airlines deal was found by Cheapflights users on 1/6. 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.
Wed 1/218:30 amSTL - VIE
1 stop17h 00mUnited Airlines
Sun 1/2510:35 amVIE - STL
2 stops31h 27mUnited Airlines
Deal found 1/6$518

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 January 8, 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

Sun 1/18

7:00 am-8:00 am

1 stop18h 00m

Vienna Intl

Tue 2/3

10:30 am-11:59 pm

1 stop20h 29m

$456

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Tue 3/10

9:59 am-5:45 pm

2 stops25h 46m

Vienna Intl

Wed 4/1

7:40 am-10:58 pm

2 stops22h 18m

$461

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sun 1/18

8:05 am-8:35 am

2 stops17h 30m

Vienna Intl

Tue 2/3

10:40 am-2:30 pm

2 stops34h 50m

$462

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Mon 4/13

9:10 am-8:15 am

1 stop16h 05m

Vienna Intl

Fri 4/24

10:30 am-9:08 pm

1 stop17h 38m

$464

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Tue 3/10

10:00 am-8:30 am

2 stops16h 30m

Vienna Intl

Wed 4/1

7:00 am-1:25 pm

1 stop13h 25m

$490

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sat 2/21

4:05 pm-9:10 am

2 stops34h 05m

Vienna Intl

Sat 2/28

10:40 am-3:29 pm

2 stops35h 49m

$516

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 1/21

8:30 am-8:30 am

1 stop17h 00m

Vienna Intl

Sun 1/25

10:35 am-11:02 am

2 stops31h 27m

$518

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 1/21

3:50 pm-3:55 pm

2 stops17h 05m

$288

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 1/28

5:42 pm-10:40 pm

3 stops45h 58m

$292

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 1/28

11:22 am-12:20 pm

2 stops17h 58m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 12 results
1
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Vienna flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, January is the cheapest month in which you can book a flight from St. Louis to Vienna (average of $532). Flying from St. Louis to Vienna in June is currently the most expensive (average of $1,096). 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 January 8, 2026.
Read reviews from past customers who have flown Austrian Airlines, United Airlines, and Air Canada 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.
Austrian Airlines
7.6
Good
889 reviews

Crew

8.1

Comfort

7.3

Boarding

7.6

Food

6.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
Austrian Airlines
7.6
Good
889 reviews
Austrian Airlines
7.6
Good
889 reviews

Crew

8.1

Comfort

7.3

Boarding

7.6

Food

6.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
United Airlines
7.4
Good
9,141 reviews
Austrian Airlines
7.6
Good
889 reviews

Crew

8.1

Comfort

7.3

Boarding

7.6

Food

6.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
Air Canada
7.1
Good
10,603 reviews
Austrian Airlines
7.6
Good
889 reviews

Crew

8.1

Comfort

7.3

Boarding

7.6

Food

6.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
Lufthansa
6.8
Okay
7,696 reviews
Austrian Airlines
7.6
Good
889 reviews

Crew

8.1

Comfort

7.3

Boarding

7.6

Food

6.8

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.

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 17h 30m. United Airlines provides one of the quickest options available for as low as $462. 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?

    Austrian Airlines, at $509, was found to be the cheapest airline from St. Louis to Vienna.Alternate airlines to your destination round-trip include United Airlines and Lufthansa. You may be able to fly from St. Louis to Vienna for 47% 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, January is the cheapest month in which you can book a flight from St. Louis to Vienna (average of $532). Flying from St. Louis to Vienna in June is currently the most expensive (average of $1,096). 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

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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 4 airlines flying from St. Louis to Vienna

Discover the top 4 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest$509Average$1,383FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$613Average$931FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$615Average$799FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$645Average$1,093FlexibilityNo cancel feeOn-time67%

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