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Cheap flights from St. Louis to Austria from $465

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Austria departing on 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Austria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
12:55 pm - 11:45 amSTL-VIE
15h 50m2 stops
Lufthansa Logo
8:00 am - 1:55 pmVIE-STL
12h 55m1 stop
$465Lufthansa
Find Deal
Mon, Dec 8 - Wed, Dec 24
Air Canada Logo
4:05 pm - 6:05 pmSTL-VIE
19h 00m2 stops
Air Canada Logo
10:40 am - 3:29 pmVIE-STL
35h 49m2 stops
$508Air Canada
Find Deal
Thu, Jan 22 - Sun, Feb 1
Austrian Airlines Logo
11:22 am - 8:00 amSTL-VIE
13h 38m1 stop
Austrian Airlines Logo
10:30 am - 11:59 pmVIE-STL
20h 29m1 stop
$511Austrian Airlines
Find Deal
Thu, Jan 22 - Sun, Feb 1
Air Canada Logo
4:05 pm - 8:45 amSTL-VIE
33h 40m1 stop
Air Canada Logo
10:40 am - 3:29 pmVIE-STL
35h 49m2 stops
$512Air Canada
Find Deal
Thu, Jan 22 - Sun, Feb 1
Multiple Airlines Logo
4:05 pm - 9:10 amSTL-VIE
34h 05m2 stops
Multiple Airlines Logo
11:20 am - 4:27 pmVIE-STL
36h 07m2 stops
$513Multiple Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
Multiple Airlines Logo
1:00 pm - 8:05 amSTL-VIE
12h 05m1 stop
Multiple Airlines Logo
8:00 am - 1:55 pmVIE-STL
12h 55m1 stop
$564Multiple Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
Lufthansa Logo
4:50 pm - 9:50 amSTL-SZG
11h 00m1 stop
Lufthansa Logo
6:00 am - 7:48 pmSZG-STL
20h 48m2 stops
$688Lufthansa
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
11:38 am - 8:00 amSTL-VIE
13h 22m1 stop
United Airlines Logo
7:00 am - 7:17 pmVIE-STL
19h 17m2 stops
$718United Airlines
Find Deal
Fri, Nov 28 - Sun, Dec 7
United Airlines Logo
6:30 am - 8:05 amSTL-VIE
18h 35m1 stop
United Airlines Logo
7:00 am - 7:17 pmVIE-STL
19h 17m2 stops
$719United Airlines
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Fri, Nov 28 - Sun, Dec 7
American Airlines Logo
2:21 pm - 1:25 pmSTL-VIE
17h 04m2 stops
American Airlines Logo
11:25 am - 10:24 pmVIE-STL
17h 59m2 stops
$877American Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31

Lufthansa flights from St. Louis to Austria

Our best Lufthansa deals on St. Louis to Austria flight tickets
Lufthansa
Dec 8
STL12:55 pmLambert-St Louis
15h 50m
2 stops
VIE11:45 amVienna Intl
Dec 24
VIE8:00 amVienna Intl
12h 55m
1 stop
STL1:55 pmLambert-St Louis
$465
Find similar
Lufthansa
Mar 27
STL4:50 pmLambert-St Louis
11h 00m
1 stop
SZG9:50 amSalzburg W.A. Mozart
Mar 31
SZG6:00 amSalzburg W.A. Mozart
20h 48m
2 stops
STL7:48 pmLambert-St Louis
$688
Find similar
Lufthansa
Mar 27
STL4:50 pmLambert-St Louis
19h 55m
1 stop
VIE6:45 pmVienna Intl
Mar 31
VIE7:25 pmVienna Intl
25h 05m
1 stop
STL1:30 pmLambert-St Louis
$695
Find similar

United Airlines flights from St. Louis to Austria

Our best United Airlines deals on St. Louis to Austria flight tickets
United Airlines
Nov 28
STL11:38 amLambert-St Louis
13h 22m
1 stop
VIE8:00 amVienna Intl
Dec 7
VIE7:00 amVienna Intl
19h 17m
2 stops
STL7:17 pmLambert-St Louis
$718
Find similar
United Airlines
Nov 28
STL6:30 amLambert-St Louis
18h 35m
1 stop
VIE8:05 amVienna Intl
Dec 7
VIE7:00 amVienna Intl
19h 17m
2 stops
STL7:17 pmLambert-St Louis
$719
Find similar
United Airlines
Nov 28
STL12:31 pmLambert-St Louis
18h 29m
2 stops
VIE2:00 pmVienna Intl
Dec 7
VIE7:00 amVienna Intl
19h 17m
2 stops
STL7:17 pmLambert-St Louis
$727
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Austria 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 November 6, 2025.
Use the filters below to find and compare flights from St. Louis to Austria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Mon 12/8

12:55 pm-11:45 am

2 stops15h 50m

Vienna Intl

Wed 12/24

8:00 am-1:55 pm

1 stop12h 55m

$465

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Thu 1/22

4:05 pm-6:05 pm

2 stops19h 00m

Vienna Intl

Sun 2/1

10:40 am-3:29 pm

2 stops35h 49m

$508

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Thu 1/22

11:22 am-8:00 am

1 stop13h 38m

Vienna Intl

Sun 2/1

10:30 am-11:59 pm

1 stop20h 29m

$511

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Thu 1/22

4:05 pm-8:45 am

1 stop33h 40m

Vienna Intl

Sun 2/1

10:40 am-3:29 pm

2 stops35h 49m

$512

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Mon 12/8

4:05 pm-9:10 am

2 stops34h 05m

Vienna Intl

Wed 12/24

11:20 am-4:27 pm

2 stops36h 07m

$513

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Mon 12/8

1:00 pm-8:05 am

1 stop12h 05m

Vienna Intl

Wed 12/24

8:00 am-1:55 pm

1 stop12h 55m

$564

St. LouisSalzburg

STL - SZG

STLSZG

Lambert-St Louis

Fri 3/27

4:50 pm-9:50 am

1 stop11h 00m

Salzburg W.A. Mozart

Tue 3/31

6:00 am-7:48 pm

2 stops20h 48m

$688

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 11/28

11:38 am-8:00 am

1 stop13h 22m

Vienna Intl

Sun 12/7

7:00 am-7:17 pm

2 stops19h 17m

$718

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 11/28

6:30 am-8:05 am

1 stop18h 35m

Vienna Intl

Sun 12/7

7:00 am-7:17 pm

2 stops19h 17m

$719

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Fri 3/27

2:21 pm-1:25 pm

2 stops17h 04m

Vienna Intl

Tue 3/31

11:25 am-10:24 pm

2 stops17h 59m

$877

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Austria from

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

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 cheapest month to fly to Austria?

In general, October is the cheapest month to fly from St. Louis to Austria. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $719. If you are unable to visit Austria during the month of October, then departing from St. Louis during the month March is also very affordable. Most momondo users find prices during this month for around $840.

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

The cheapest day to depart from St. Louis to Austria is on a Monday when prices can be found for as low as $813. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,290. These prices are subject to change though, so be sure to set up a Price Alert for flights to Austria.

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

According to our data, the cheapest time of day to fly to Austria is in the evening. momondo users have found flights departing from St. Louis to Austria in the evening for as low as $804. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $1,245.

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

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

Cheap St. Louis to Austria flight deals and tips

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

Direct flights

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

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

    Prices for flights from Lambert-St Louis Airport to Austria refresh daily.

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

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

    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 Austria.

  • What documentation or ID do you need to fly to Austria?

    The required travel and health documents for your Austria 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 Austria. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from St. Louis to Austria

Compare and see reviews for airlines that fly from St. Louis to Austria with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $615Free CancellationRating
6.8
7,558 reviews
Search Lufthansa flights
United AirlinesPriceFrom $640Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
Air CanadaPriceFrom $645Free CancellationRating
7.1
10,416 reviews
Search Air Canada flights
Austrian AirlinesPriceFrom $1,019Free CancellationRating
7.6
865 reviews
Search Austrian Airlines flights

Why use momondo?

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

It is quick and easy to find St. Louis to Austria flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Austria that suits you.

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

Yes. momondo enables you to select and highlight flights to Austria from St. Louis with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Austria.

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

If you are simply researching potential flights to Austria, momondo offers a useful price alert feature which will track prices for flights to Austria from St. Louis and alert you when they change.

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