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$425+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — VIE
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
1 adult, Economy
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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 October 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:50 pmSTL - VIE
1 stop12h 55mLufthansa
Sun 12/78:00 amVIE - STL
1 stop12h 55mLufthansa
Deal found 10/9$532
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Fri 11/2811:05 amSTL - VIE
2 stops18h 15mUnited Airlines
Sun 12/77:00 amVIE - STL
1 stop13h 55mUnited Airlines
Deal found 10/9$555
This Air Canada deal was found by Cheapflights users on 10/9. 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.
Tue 12/24:05 pmSTL - VIE
2 stops23h 35mAir Canada
Mon 12/810:40 amVIE - STL
2 stops35h 49mAir Canada
Deal found 10/9$558
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Thu 12/411:50 amSTL - VIE
1 stop13h 10mUnited Airlines
Sun 12/77:00 amVIE - STL
1 stop13h 55mUnited Airlines
Deal found 10/9$559
This Air Canada deal was found by Cheapflights users on 10/8. 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.
Wed 12/34:05 pmSTL - VIE
2 stops33h 30mAir Canada
Mon 12/810:40 amVIE - STL
2 stops35h 49mAir Canada
Deal found 10/8$562
This United Airlines deal was found by Cheapflights users on 10/9. 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 12/37:00 amSTL - VIE
2 stops18h 05mUnited Airlines
Sun 12/77:00 amVIE - STL
1 stop13h 55mUnited Airlines
Deal found 10/9$563
This Lufthansa deal was found by Cheapflights users on 10/9. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:42 pmSTL - VIE
2 stops14h 53mLufthansa
Sun 12/76:00 amVIE - STL
1 stop14h 55mLufthansa
Deal found 10/9$565
This United Airlines deal was found by Cheapflights users on 10/8. 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 12/34:05 pmSTL - VIE
1 stop33h 40mUnited Airlines
Mon 12/87:00 amVIE - STL
2 stops39h 29mUnited Airlines
Deal found 10/8$567
This Air Canada deal was found by Cheapflights users on 10/9. 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.
Wed 12/34:05 pmSTL - VIE
1 stop33h 40mMultiple Airlines
Sun 12/76:10 amVIE - STL
2 stops40h 19mMultiple Airlines
Deal found 10/9$569
This FlightHub deal was found by Cheapflights users on 10/9. 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.
Thu 12/44:05 pmSTL - VIE
2 stops14h 55mMultiple Airlines
Sun 12/77:00 amVIE - STL
1 stop13h 55mMultiple Airlines
Deal found 10/9$570

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 October 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$542
(lol.travel)

One-way from

$425
(Lufthansa)

Popular in

June

Cheapest in

October

Average price

$719
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. 16% potential increase in price ($211 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 10, 2025.
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

Fri 11/28

11:05 am-12:20 pm

2 stops18h 15m

Vienna Intl

Sun 12/7

7:00 am-1:55 pm

1 stop13h 55m

$555

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Tue 12/2

1:00 pm-12:20 pm

2 stops16h 20m

Vienna Intl

Sun 12/7

7:00 am-1:55 pm

1 stop13h 55m

$556

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 12/3

4:05 pm-8:45 am

1 stop33h 40m

Vienna Intl

Sun 12/7

7:00 am-1:55 pm

1 stop13h 55m

$561

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 12/3

4:05 pm-8:45 am

1 stop33h 40m

Vienna Intl

Mon 12/8

7:00 am-3:29 pm

2 stops39h 29m

$567

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 11/28

4:05 pm-2:00 pm

2 stops14h 55m

Vienna Intl

Sun 12/7

6:10 am-3:29 pm

2 stops40h 19m

$578

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Thu 12/4

11:40 am-11:25 am

2 stops16h 45m

Vienna Intl

Sun 12/7

12:15 pm-11:40 pm

2 stops18h 25m

$583

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 12/3

4:32 pm-6:20 pm

2 stops18h 48m

Vienna Intl

Mon 12/8

6:50 am-9:02 pm

2 stops21h 12m

$583

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sun 3/15

4:05 pm-6:05 pm

2 stops20h 00m

Vienna Intl

Tue 3/24

10:35 am-2:18 pm

2 stops33h 43m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 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 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, October is the cheapest month in which you can book a flight from St. Louis to Vienna (average of $618). 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.

What is the cheapest time of day to fly from STL to VIE?

Find hourly flight availability from St. Louis to Vienna. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 10, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 35% on flights from St. Louis to Vienna by exploring options for tickets in the evening.

How much does it cost to fly round-trip from St. Louis to Vienna?

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 October 10, 2025.
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
853 reviews

Comfort

7.3

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Austrian Airlines
7.6
Good
853 reviews
Austrian Airlines
7.6
Good
853 reviews

Comfort

7.3

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
United Airlines
7.4
Good
8,970 reviews
Austrian Airlines
7.6
Good
853 reviews

Comfort

7.3

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Air Canada
7.1
Good
10,260 reviews
Austrian Airlines
7.6
Good
853 reviews

Comfort

7.3

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Lufthansa
6.8
Okay
7,462 reviews
Austrian Airlines
7.6
Good
853 reviews

Comfort

7.3

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the 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 18h 15m. United Airlines provides one of the quickest options available for as low as $555. St. Louis and Vienna are separated by a distance of 4949 mi.

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

    Lufthansa, at $638, was found to be the cheapest airline from St. Louis to Vienna.Alternate airlines to your destination round-trip include Air Canada and United Airlines. You may be able to fly from St. Louis to Vienna for 38% 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, October is the cheapest month in which you can book a flight from St. Louis to Vienna (average of $618). 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 October 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$638Average$895FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$645Average$1,093FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$651Average$976FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$1,019Average$1,383FlexibilityNo cancel feeOn-time78%

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