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

United Airlines, at $805, was found to be the cheapest airline from St. Louis to Vienna.Alternate airlines to your destination round-trip include Air Canada and Austrian Airlines. You may be able to fly from St. Louis to Vienna for 25% less than the average price by searching for these airlines.

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

Travelers seeking maximum savings on their St. Louis to Vienna flight should consider departing on Monday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from St. Louis to Vienna?

Before booking your flight from St. Louis to Vienna check out the most popular airlines for this route: Air Canada, British Airways or Lufthansa.

What is the cheapest day to fly round-trip from St. Louis to Vienna?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Vienna. Check prices with Cheapflights to find a great deal for your trip.

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

Flights from St. Louis to Vienna lean towards being more expensive in June. Prices are generally better when you fly from St. Louis to Vienna in February, with the cheapest ticket starting at $611.

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.

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.

$614+ Flights from St. Louis to Vienna

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Cheap flight deals from St. Louis to Vienna

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$805 (United)
One-way from	$614 (Air Canada)
Popular in	June
Cheapest in	February
Average price	$850

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 ($321 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($55 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 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 March 28, 2025.

Fri 11/281:27 pmSTL - VIE

1 stop11h 38mMultiple Airlines

Sun 12/77:00 amVIE - STL

1 stop13h 55mMultiple Airlines

Deal found 3/28

$732

Fri 11/286:29 pmSTL - VIE

2 stops16h 56mBritish Airways

Sun 12/711:00 amVIE - STL

2 stops18h 22mBritish Airways

Deal found 3/27

$747

Tue 4/2210:40 amSTL - VIE

2 stops42h 40mUnited Airlines

Fri 5/910:30 amVIE - STL

2 stops35h 20mUnited Airlines

Deal found 3/27

$805

Tue 4/223:30 pmSTL - VIE

2 stops24h 10mAir Canada

Fri 5/911:00 amVIE - STL

1 stop15h 58mAir Canada

Deal found 3/27

$814

Fri 11/281:27 pmSTL - VIE

1 stop11h 38mAustrian Airlines

Sun 12/710:55 amVIE - STL

1 stop13h 19mAustrian Airlines

Deal found 3/27

$849

Wed 7/2312:48 pmSTL - VIE

2 stops15h 22mAmerican Airlines

Wed 8/67:00 amVIE - STL

2 stops17h 56mAmerican Airlines

Deal found 3/27

$1,000

Fri 11/283:30 pmSTL - VIE

3 stops24h 25mScandinavian Airlines

Sun 12/76:55 amVIE - STL

3 stops23h 44mScandinavian Airlines

Deal found 3/27

$1,287

Sat 4/52:03 pmSTL - VIE

2 stops38h 07mAer Lingus

Wed 4/911:50 amVIE - STL

2 stops18h 43mAer Lingus

Deal found 3/27

$1,349

Sun 6/229:09 amSTL - VIE

2 stops19h 11mDelta

Sun 7/62:20 pmVIE - STL

2 stops24h 46mDelta

Deal found 3/26

$1,679

Wed 6/183:30 pmSTL - VIE

1 stop12h 15mLufthansa

Sun 7/68:00 amVIE - STL

1 stop12h 30mLufthansa

Deal found 3/26

$1,796

Fri 6/201:39 pmSTL - VIE

2 stops16h 56mKLM

Sat 7/52:20 pmVIE - STL

2 stops16h 19mKLM

Deal found 3/26

$2,004

Best flights from St. Louis to Vienna
Discover carefully curated flight deals from St. Louis to Vienna that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Tue 4/2210:40 amSTL - VIE

2 stops42h 40mUnited Airlines

Fri 5/910:30 amVIE - STL

2 stops35h 20mUnited Airlines

Deal found 3/27

$805

Tue 4/223:30 pmSTL - VIE

2 stops24h 10mAir Canada

Fri 5/911:00 amVIE - STL

1 stop15h 58mAir Canada

Deal found 3/27

$814

Thu 5/81:30 pmSTL - VIE

1 stop12h 05mMultiple Airlines

Wed 5/2110:45 amVIE - STL

1 stop19h 52mMultiple Airlines

Deal found 3/27

$846

Fri 4/181:12 pmSTL - VIE

1 stop12h 08mAustrian Airlines

Fri 5/210:45 amVIE - STL

1 stop20h 01mAustrian Airlines

Deal found 3/27

$855

Fri 4/185:27 pmSTL - VIE

2 stops17h 23mBritish Airways

Fri 4/2511:10 amVIE - STL

2 stops19h 23mBritish Airways

Deal found 3/27

$897

Wed 6/184:23 pmSTL - VIE

2 stops16h 22mAmerican Airlines

Wed 7/27:45 amVIE - STL

2 stops19h 45mAmerican Airlines

Deal found 3/26

$1,167

Sat 4/52:03 pmSTL - VIE

2 stops38h 07mAer Lingus

Wed 4/911:50 amVIE - STL

2 stops18h 43mAer Lingus

Deal found 3/27

$1,349

Sun 6/229:09 amSTL - VIE

2 stops19h 11mDelta

Sun 7/62:20 pmVIE - STL

2 stops24h 46mDelta

Deal found 3/26

$1,679

Wed 6/183:30 pmSTL - VIE

1 stop12h 15mLufthansa

Sun 7/68:00 amVIE - STL

1 stop12h 30mLufthansa

Deal found 3/26

$1,796

Fri 6/201:39 pmSTL - VIE

2 stops16h 56mKLM

Sat 7/52:20 pmVIE - STL

2 stops16h 19mKLM

Deal found 3/26

$2,004

Fri 4/111:05 pmSTL - VIE

3 stops26h 50mScandinavian Airlines

Sat 4/197:05 amVIE - STL

3 stops23h 31mScandinavian Airlines

Deal found 3/27

$2,042

Last-minute flights from St. Louis to Vienna
Discover last-minute flight deals from St. Louis to Vienna. Data last updated March 28, 2025 and is based on user searches.

Sat 4/52:03 pmSTL - VIE

2 stops38h 07mAer Lingus

Wed 4/911:50 amVIE - STL

2 stops18h 43mAer Lingus

Deal found 3/27

$1,349

Sat 4/53:30 pmSTL - VIE

1 stop33h 50mAir Canada

Wed 4/911:00 amVIE - STL

2 stops31h 03mAir Canada

Deal found 3/27

$1,838

Sat 4/53:40 pmSTL - VIE

1 stop33h 40mUnited Airlines

Wed 4/910:30 amVIE - STL

1 stop35h 19mUnited Airlines

Deal found 3/27

$1,846

Fri 4/1111:21 amSTL - VIE

2 stops16h 29mMultiple Airlines

Sat 4/1911:35 amVIE - STL

2 stops17h 37mMultiple Airlines

Deal found 3/27

$978

Fri 4/111:05 pmSTL - VIE

3 stops26h 50mScandinavian Airlines

Sat 4/197:05 amVIE - STL

3 stops23h 31mScandinavian Airlines

Deal found 3/27

$2,042

Fri 4/181:12 pmSTL - VIE

1 stop12h 08mAustrian Airlines

Fri 5/210:45 amVIE - STL

1 stop20h 01mAustrian Airlines

Deal found 3/27

$855

Fri 4/185:27 pmSTL - VIE

2 stops17h 23mBritish Airways

Fri 4/2511:10 amVIE - STL

2 stops19h 23mBritish Airways

Deal found 3/27

$897

Tue 4/2210:40 amSTL - VIE

2 stops42h 40mUnited Airlines

Fri 5/910:30 amVIE - STL

2 stops35h 20mUnited Airlines

Deal found 3/27

$805

Tue 4/223:30 pmSTL - VIE

2 stops24h 10mAir Canada

Fri 5/911:00 amVIE - STL

1 stop15h 58mAir Canada

Deal found 3/27

$814

One-way flights from St. Louis to Vienna
Search for one-way flight options from St. Louis to Vienna. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Sat 4/125:33 pmSTL - VIE

2 stops31h 47mAir Canada

Deal found 3/27

$614

Sat 4/125:33 pmSTL - VIE

1 stop31h 47mUnited Airlines

Deal found 3/27

$620

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Vienna that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Tue 4/22

10:40 am-12:20 pm

2 stops42h 40m

Vienna Intl

Fri 5/9

10:30 am-2:50 pm

2 stops35h 20m

$805

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Tue 4/22

3:30 pm-10:40 pm

2 stops24h 10m

Vienna Intl

Fri 5/9

11:00 am-7:58 pm

1 stop15h 58m

$814

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Thu 5/8

1:30 pm-8:35 am

1 stop12h 05m

Vienna Intl

Wed 5/21

10:45 am-11:37 pm

1 stop19h 52m

$846

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 4/18

1:12 pm-8:20 am

1 stop12h 08m

Vienna Intl

Fri 5/2

10:45 am-11:46 pm

1 stop20h 01m

$855

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 4/18

5:27 pm-5:50 pm

2 stops17h 23m

Vienna Intl

Fri 4/25

11:10 am-11:33 pm

2 stops19h 23m

$897

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 7/23

12:48 pm-11:10 am

2 stops15h 22m

Vienna Intl

Wed 8/6

7:00 am-5:56 pm

2 stops17h 56m

$1,000

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sun 6/22

9:09 am-11:20 am

2 stops19h 11m

Vienna Intl

Sun 7/6

2:20 pm-8:06 am

2 stops24h 46m

$1,679

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 6/18

3:30 pm-10:45 am

1 stop12h 15m

Vienna Intl

Sun 7/6

8:00 am-1:30 pm

1 stop12h 30m

$1,796

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 6/20

1:39 pm-1:35 pm

2 stops16h 56m

Vienna Intl

Sat 7/5

2:20 pm-11:39 pm

2 stops16h 19m

$2,004

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 4/11

1:05 pm-10:55 pm

3 stops26h 50m

Vienna Intl

Sat 4/19

7:05 am-11:36 pm

3 stops23h 31m

$2,042

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 13 results

Compare providers for flights from St. Louis to Vienna

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 March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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 $737). Flying from St. Louis to Vienna in June is currently the most expensive (average of $1,326). 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?

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.

Rainfall in Vienna by month

In terms of precipitation, rainfall in Vienna ranges from 0.8 - 2.6 inches per month. July is typically the wettest month, when rainfall can reach 2.6 in. January is typically the driest time to visit Vienna when rainfall is around 0.8 in.

Temperature in Vienna by month

If weather is an important factor for your trip to Vienna, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Vienna

See what other customers who have flown with Delta, KLM and Austrian Airlines from St. Louis to Vienna have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,897 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,897 reviews

Delta

8.0

Very good

7,897 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,321 reviews

Delta

8.0

Very good

7,897 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines

7.5

Good

769 reviews

Delta

8.0

Very good

7,897 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,603 reviews

Delta

8.0

Very good

7,897 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Scandinavian Airlines

7.3

Good

1,325 reviews

Delta

8.0

Very good

7,897 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from St. Louis to Vienna round-trip?
United Airlines, at $805, was found to be the cheapest airline from St. Louis to Vienna.Alternate airlines to your destination round-trip include Air Canada and Austrian Airlines. You may be able to fly from St. Louis to Vienna for 25% 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 $1,326). 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

Amstetten

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Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Vienna

Kansas City to Vienna flights

St. Louis to Salzburg flights

Other flights to Vienna

Top 5 airlines flying from St. Louis to Vienna

Airline	Cheapest	Average	Flexibility	On-time
Austrian Airlines	Cheapest$611	Average$1,283	FlexibilityNo cancel fee	On-time78%
United Airlines	Cheapest$672	Average$1,035	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$691	Average$1,101	FlexibilityNo cancel fee	On-time76%
Air Canada	Cheapest$696	Average$1,011	FlexibilityNo cancel fee	On-time67%
British Airways	Cheapest$762	Average$838	FlexibilityNo cancel fee	On-time70%

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$614+ 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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Vienna with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Vienna

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Vienna

Cheapest flights from St. Louis to ViennaExplore 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 March 28, 2025.

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 March 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Vienna that are best for you.

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 March.

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.

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?

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 March 28, 2025.

Rainfall in Vienna by month

Plan your trip to Vienna by taking into account the average rainfall totals by month.

Temperature in Vienna by month

Plan your trip to Vienna by taking into account the average temperature totals by month.

Reviews of airlines servicing Vienna

See what other customers who have flown with Delta, KLM and Austrian Airlines from St. Louis to Vienna have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

Traveling to a place near St. Louis?

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Alternative routes for St. Louis to Vienna

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Top 5 airlines flying from St. Louis to Vienna

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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 March 28, 2025.