Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Vienna from $425

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Vienna departing on 1/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Vienna

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:43 pm - 4:35 pmSTL-VIE
14h 52m2 stops
Lufthansa Logo
7:00 am - 1:55 pmVIE-STL
13h 55m1 stop
$542Lufthansa
Find Deal
Mon, Nov 10 - Sun, Nov 23
United Airlines Logo
5:31 pm - 8:00 amSTL-VIE
31h 29m1 stop
United Airlines Logo
10:30 am - 11:44 pmVIE-STL
20h 14m1 stop
$553United Airlines
Find Deal
Mon, Nov 10 - Sun, Nov 23
United Airlines Logo
8:25 am - 6:05 pmSTL-VIE
26h 40m2 stops
United Airlines Logo
7:00 am - 1:55 pmVIE-STL
13h 55m1 stop
$556United Airlines
Find Deal
Fri, Nov 28 - Sun, Dec 7
Air Canada Logo
4:05 pm - 9:10 amSTL-VIE
34h 05m2 stops
Air Canada Logo
10:40 am - 3:29 pmVIE-STL
35h 49m2 stops
$558Air Canada
Find Deal
Tue, Dec 2 - Mon, Dec 8
United Airlines Logo
11:50 am - 8:00 amSTL-VIE
13h 10m1 stop
United Airlines Logo
7:00 am - 1:55 pmVIE-STL
13h 55m1 stop
$559United Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
United Airlines Logo
4:05 pm - 8:45 amSTL-VIE
33h 40m1 stop
United Airlines Logo
7:00 am - 1:55 pmVIE-STL
13h 55m1 stop
$561United Airlines
Find Deal
Fri, Nov 28 - Sun, Dec 7
Air Canada Logo
4:05 pm - 8:35 amSTL-VIE
33h 30m2 stops
Air Canada Logo
10:40 am - 3:29 pmVIE-STL
35h 49m2 stops
$562Air Canada
Find Deal
Wed, Dec 3 - Mon, Dec 8
Delta Logo
11:40 am - 11:25 amSTL-VIE
16h 45m2 stops
Delta Logo
6:50 am - 5:56 pmVIE-STL
18h 06m2 stops
$583Delta
Find Deal
Thu, Dec 4 - Mon, Dec 8
Lufthansa Logo
5:18 pm - 4:35 pmSTL-VIE
17h 17m2 stops
Lufthansa Logo
5:10 pm - 2:55 pmVIE-STL
27h 45m1 stop
$643Lufthansa
Find Deal
Wed, Mar 11 - Thu, Mar 19
Delta Logo
4:00 pm - 6:20 pmSTL-VIE
20h 20m2 stops
Delta Logo
6:50 am - 8:39 pmVIE-STL
19h 49m2 stops
$818Delta
Find Deal
Wed, Mar 11 - Sun, Mar 22

United Airlines flights from St. Louis to Vienna

Our best United Airlines deals on St. Louis to Vienna flight tickets
United Airlines
Nov 10
STL5:31 pmLambert-St Louis
31h 29m
1 stop
VIE8:00 amVienna Intl
Nov 23
VIE10:30 amVienna Intl
20h 14m
1 stop
STL11:44 pmLambert-St Louis
$553
Find similar
United Airlines
Nov 28
STL8:25 amLambert-St Louis
26h 40m
2 stops
VIE6:05 pmVienna Intl
Dec 7
VIE7:00 amVienna Intl
13h 55m
1 stop
STL1:55 pmLambert-St Louis
$556
Find similar
United Airlines
Dec 4
STL11:50 amLambert-St Louis
13h 10m
1 stop
VIE8:00 amVienna Intl
Dec 7
VIE7:00 amVienna Intl
13h 55m
1 stop
STL1:55 pmLambert-St Louis
$559
Find similar

Lufthansa flights from St. Louis to Vienna

Our best Lufthansa deals on St. Louis to Vienna flight tickets
Lufthansa
Nov 10
STL6:43 pmLambert-St Louis
14h 52m
2 stops
VIE4:35 pmVienna Intl
Nov 23
VIE7:00 amVienna Intl
13h 55m
1 stop
STL1:55 pmLambert-St Louis
$542
Find similar
Lufthansa
Mar 11
STL5:18 pmLambert-St Louis
17h 17m
2 stops
VIE4:35 pmVienna Intl
Mar 19
VIE5:10 pmVienna Intl
27h 45m
1 stop
STL2:55 pmLambert-St Louis
$643
Find similar
Lufthansa
Mar 11
STL4:50 pmLambert-St Louis
11h 55m
1 stop
VIE10:45 amVienna Intl
Mar 19
VIE11:20 amVienna Intl
33h 35m
1 stop
STL2:55 pmLambert-St Louis
$651
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated October 9, 2025.
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

Mon 11/10

6:43 pm-4:35 pm

2 stops14h 52m

Vienna Intl

Sun 11/23

7:00 am-1:55 pm

1 stop13h 55m

$542

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Mon 11/10

5:31 pm-8:00 am

1 stop31h 29m

Vienna Intl

Sun 11/23

10:30 am-11:44 pm

1 stop20h 14m

$553

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 11/28

8:25 am-6:05 pm

2 stops26h 40m

Vienna Intl

Sun 12/7

7:00 am-1:55 pm

1 stop13h 55m

$556

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Tue 12/2

4:05 pm-9:10 am

2 stops34h 05m

Vienna Intl

Mon 12/8

10:40 am-3:29 pm

2 stops35h 49m

$558

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Thu 12/4

11:50 am-8:00 am

1 stop13h 10m

Vienna Intl

Sun 12/7

7:00 am-1:55 pm

1 stop13h 55m

$559

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 11/28

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-8:35 am

2 stops33h 30m

Vienna Intl

Mon 12/8

10:40 am-3:29 pm

2 stops35h 49m

$562

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Thu 12/4

11:40 am-11:25 am

2 stops16h 45m

Vienna Intl

Mon 12/8

6:50 am-5:56 pm

2 stops18h 06m

$583

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 3/11

5:18 pm-4:35 pm

2 stops17h 17m

Vienna Intl

Thu 3/19

5:10 pm-2:55 pm

1 stop27h 45m

$643

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Wed 3/11

4:00 pm-6:20 pm

2 stops20h 20m

Vienna Intl

Sun 3/22

6:50 am-8:39 pm

2 stops19h 49m

$818

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Vienna from

How to get the cheapest flight ticket from St. Louis to Vienna

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Vienna?

What is the cheapest month to fly to Vienna?

In general, October is the cheapest month to fly from St. Louis to Vienna. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $719. If you aren’t able to travel to Vienna during the month of October, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $840.

What is the cheapest day to depart on your flight to Vienna?

On average, the least expensive day to fly to Vienna from St. Louis is on a Monday. momondo users have found tickets for Monday departures for as low as $813. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,290.

What is the cheapest time of day to depart on your flight to Vienna?

The cheapest time of day to fly to Vienna is in the evening when flights can be purchased for as low as $804. Try not to purchase tickets in the morning because they tend to be around $1,245. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on St. Louis to Vienna flights?

You could potentially save up to 34% on your flight if you consider stops on a St. Louis to Vienna flight.

When to book flights from St. Louis to Vienna

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Vienna according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Vienna (STL to VIE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Vienna

Direct flights

None
There are no direct flights from St. Louis to Vienna. There are no popular flight routes from St. Louis to Vienna.
Search flight deals

  • How far is Lambert-St Louis to Vienna Intl by plane?

    Lambert-St Louis and Vienna Intl are 4938.1 mi apart from one another. A reasonable flight in good conditions will take 11h 55m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Vienna Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Vienna Intl Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Vienna Intl Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Vienna Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Vienna Intl Airport.

  • What documentation or ID do you need to fly to Vienna Intl Airport?

    The required travel and health documents for your Vienna Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Vienna Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from St. Louis to Vienna?

Best airlines flying from St. Louis to Vienna

Compare and see reviews for airlines that fly from St. Louis to Vienna with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $638Free CancellationRating
6.8
7,461 reviews
Search Lufthansa flights
Air CanadaPriceFrom $645Free CancellationRating
7.1
10,259 reviews
Search Air Canada flights
United AirlinesPriceFrom $651Free CancellationRating
7.4
8,970 reviews
Search United Airlines flights
Austrian AirlinesPriceFrom $1,019Free CancellationRating
7.6
853 reviews
Search Austrian Airlines flights

Traveling to a place near Vienna?

Book flights to Vienna if you plan to visit one of these locations
Schwechat
Wiener Neustadt
Steyr
Semmering
Melk
Krems an der Donau

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Vienna?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Vienna from St. Louis.

Can I find flights from St. Louis to Vienna with flexible booking policies on momondo?

Yes. All flights to Vienna from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Vienna?

momondo helps you find the best flight between St. Louis and Vienna by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Vienna right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Vienna from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Vienna trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/8
Sat 11/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Austria