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$515+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — VIE
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$643
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,057
From Lambert-St Louis to Vienna Intl
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Highest demand for flights based on searches. 19% potential increase in price ($245 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 11/16:43 pmSTL - VIE
2 stops31h 47mUnited Airlines
Tue 11/1110:35 amVIE - STL
2 stops35h 54mUnited Airlines
Deal found 7/2$612
This Kiwi.com deal was found by Cheapflights users on 7/3. 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.
Sun 8/39:15 amSTL - VIE
2 stops16h 20mMultiple Airlines
Sun 8/248:00 amVIE - STL
1 stop12h 30mMultiple Airlines
Deal found 7/3$643
This Air Canada deal was found by Cheapflights users on 7/1. 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 8/51:30 pmSTL - VIE
1 stop12h 05mAir Canada
Fri 8/1510:55 amVIE - STL
2 stops15h 50mAir Canada
Deal found 7/1$705
This Ovago deal was found by Cheapflights users on 7/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2811:45 amSTL - VIE
1 stop13h 20mAustrian Airlines
Sun 12/710:30 amVIE - STL
1 stop20h 15mAustrian Airlines
Deal found 7/1$745
This Gurufare deal was found by Cheapflights users on 7/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:43 pmSTL - VIE
2 stops14h 52mLufthansa
Sun 12/77:00 amVIE - STL
1 stop13h 55mLufthansa
Deal found 7/1$748
This KLM deal was found by Cheapflights users on 7/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/284:27 pmSTL - VIE
2 stops16h 43mKLM
Sun 12/76:55 amVIE - STL
2 stops16h 56mKLM
Deal found 7/1$803
This Gurufare deal was found by Cheapflights users on 7/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/65:00 pmSTL - VIE
2 stops18h 25mBritish Airways
Sat 10/188:30 pmVIE - STL
2 stops26h 34mBritish Airways
Deal found 7/1$890
This Delta deal was found by Cheapflights users on 7/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/231:29 pmSTL - VIE
2 stops17h 06mDelta
Wed 8/69:20 amVIE - STL
2 stops21h 00mDelta
Deal found 7/3$948

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 July 3, 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

Sat 11/1

6:43 pm-8:30 am

2 stops31h 47m

Vienna Intl

Tue 11/11

10:35 am-3:29 pm

2 stops35h 54m

$612

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sun 8/3

9:15 am-8:35 am

2 stops16h 20m

Vienna Intl

Sun 8/24

8:00 am-1:30 pm

1 stop12h 30m

$643

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Tue 8/5

1:30 pm-8:35 am

1 stop12h 05m

Vienna Intl

Fri 8/15

10:55 am-7:45 pm

2 stops15h 50m

$705

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 11/28

11:45 am-8:05 am

1 stop13h 20m

Vienna Intl

Sun 12/7

10:30 am-11:45 pm

1 stop20h 15m

$745

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 11/28

6:43 pm-4:35 pm

2 stops14h 52m

Vienna Intl

Sun 12/7

7:00 am-1:55 pm

1 stop13h 55m

$748

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 11/28

10:45 am-11:30 am

2 stops17h 45m

Vienna Intl

Sun 12/7

6:55 am-4:51 pm

2 stops16h 56m

$803

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Mon 10/6

5:00 pm-6:25 pm

2 stops18h 25m

Vienna Intl

Sat 10/18

8:30 pm-4:04 pm

2 stops26h 34m

$890

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 7/23

1:29 pm-1:35 pm

2 stops17h 06m

Vienna Intl

Wed 8/6

9:20 am-11:20 pm

2 stops21h 00m

$948

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 11/28

6:43 pm-8:45 am

2 stops31h 02m

$515

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 11/28

8:25 am-8:30 am

1 stop17h 05m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 14 results
1
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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 $737). Flying from St. Louis to Vienna in June is currently the most expensive (average of $1,237). 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 July 3, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 36% 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 July 3, 2025.
Read reviews from past customers who have flown Delta, 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.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,681 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,207 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection 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.

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

    United Airlines, at $668, was found to be the cheapest airline from St. Louis to Vienna.Alternate airlines to your destination round-trip include Air Canada and Delta. You may be able to fly from St. Louis to Vienna for 35% 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 $737). Flying from St. Louis to Vienna in June is currently the most expensive (average of $1,237). 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 St. Louis?

Book flights to St. Louis 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest$611Average$1,283FlexibilityNo cancel feeOn-time78%
Air CanadaCheapest$645Average$1,093FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$664Average$983FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$674Average$991FlexibilityNo cancel feeOn-time76%

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