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Cheap flights from St. Louis to Austria from $341

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 Austria departing on 4/16. 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

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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.
Multiple Airlines Logo
4:05 pm - 10:40 pm
STL
-
VIE
47h 35m
2 stops
Multiple Airlines Logo
7:00 am - 1:25 pm
VIE
-
STL
13h 25m
1 stop
$492Multiple Airlines
Sat, Apr 11 - Wed, Apr 22
Air Canada Logo
4:05 pm - 9:10 am
STL
-
VIE
58h 05m
2 stops
Air Canada Logo
11:00 am - 9:08 pm
VIE
-
STL
41h 08m
2 stops
$495Air Canada
Sat, Apr 11 - Wed, Apr 22
United Airlines Logo
7:00 pm - 6:05 pm
STL
-
VIE
17h 05m
2 stops
United Airlines Logo
10:35 am - 8:41 pm
VIE
-
STL
40h 06m
2 stops
$496United Airlines
Sun, Mar 8 - Sun, Mar 15
United Airlines Logo
7:00 pm - 8:05 am
STL
-
VIE
31h 05m
1 stop
United Airlines Logo
10:35 am - 8:41 pm
VIE
-
STL
40h 06m
2 stops
$499United Airlines
Sun, Mar 8 - Sun, Mar 15
Multiple Airlines Logo
4:05 pm - 8:20 am
STL
-
VIE
33h 15m
1 stop
Multiple Airlines Logo
6:00 am - 3:24 pm
VIE
-
STL
16h 24m
2 stops
$502Multiple Airlines
Sat, Apr 18 - Wed, Apr 29
United Airlines Logo
2:50 pm - 12:20 pm
STL
-
VIE
38h 30m
2 stops
United Airlines Logo
10:35 am - 3:29 pm
VIE
-
STL
34h 54m
1 stop
$509United Airlines
Sat, Mar 7 - Sun, Mar 15
Multiple Airlines Logo
4:05 pm - 8:20 am
STL
-
VIE
33h 15m
1 stop
Multiple Airlines Logo
10:45 am - 11:57 pm
VIE
-
STL
20h 12m
1 stop
$514Multiple Airlines
Sat, Apr 18 - Wed, Apr 29
Air Canada Logo
4:05 pm - 9:10 am
STL
-
VIE
58h 05m
2 stops
Air Canada Logo
11:00 am - 3:24 pm
VIE
-
STL
35h 24m
2 stops
$516Air Canada
Sat, Apr 18 - Wed, Apr 29
Lufthansa Logo
1:13 pm - 9:45 am
STL
-
SZG
13h 32m
2 stops
Lufthansa Logo
6:00 am - 1:25 pm
SZG
-
STL
14h 25m
1 stop
$945Lufthansa
Mon, Jul 6 - Wed, Jul 8
Lufthansa Logo
3:30 pm - 1:35 pm
STL
-
SZG
15h 05m
1 stop
Lufthansa Logo
6:00 am - 1:25 pm
SZG
-
STL
14h 25m
1 stop
$955Lufthansa
Tue, Jul 14 - Mon, Jul 20

Air Canada flights from St. Louis to Austria

Our best Air Canada deals on St. Louis to Austria flight tickets
Air Canada
Apr 11
STL4:05 pmLambert-St Louis
58h 05m
2 stops
VIE9:10 amVienna Intl
Apr 22
VIE11:00 amVienna Intl
41h 08m
2 stops
STL9:08 pmLambert-St Louis
$495
Air Canada
Apr 18
STL4:05 pmLambert-St Louis
58h 05m
2 stops
VIE9:10 amVienna Intl
Apr 29
VIE11:00 amVienna Intl
35h 24m
2 stops
STL3:24 pmLambert-St Louis
$516
Air Canada
May 10
STL7:30 amLambert-St Louis
19h 15m
2 stops
VIE9:45 amVienna Intl
May 21
VIE11:00 amVienna Intl
16h 05m
1 stop
STL8:05 pmLambert-St Louis
$630

United Airlines flights from St. Louis to Austria

Our best United Airlines deals on St. Louis to Austria flight tickets
United Airlines
Mar 7
STL2:50 pmLambert-St Louis
38h 30m
2 stops
VIE12:20 pmVienna Intl
Mar 15
VIE10:35 amVienna Intl
34h 54m
1 stop
STL3:29 pmLambert-St Louis
$509
United Airlines
Mar 7
STL2:50 pmLambert-St Louis
38h 30m
2 stops
VIE12:20 pmVienna Intl
Mar 15
VIE7:00 amVienna Intl
38h 29m
2 stops
STL3:29 pmLambert-St Louis
$517
United Airlines
Mar 24
STL10:05 amLambert-St Louis
20h 15m
2 stops
VIE12:20 pmVienna Intl
Mar 31
VIE10:30 amVienna Intl
18h 17m
1 stop
STL9:47 pmLambert-St Louis
$561

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 February 10, 2026.
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

Sat 4/11

4:05 pm-10:40 pm

2 stops47h 35m

Vienna Intl

Wed 4/22

7:00 am-1:25 pm

1 stop13h 25m

$492

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sat 4/11

4:05 pm-9:10 am

2 stops58h 05m

Vienna Intl

Wed 4/22

11:00 am-9:08 pm

2 stops41h 08m

$495

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sun 3/8

7:00 pm-6:05 pm

2 stops17h 05m

Vienna Intl

Sun 3/15

10:35 am-8:41 pm

2 stops40h 06m

$496

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sun 3/8

7:00 pm-8:05 am

1 stop31h 05m

Vienna Intl

Sun 3/15

10:35 am-8:41 pm

2 stops40h 06m

$499

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sat 4/18

4:05 pm-8:20 am

1 stop33h 15m

Vienna Intl

Wed 4/29

6:00 am-3:24 pm

2 stops16h 24m

$502

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sat 3/7

2:50 pm-12:20 pm

2 stops38h 30m

Vienna Intl

Sun 3/15

10:35 am-3:29 pm

1 stop34h 54m

$509

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sat 4/18

4:05 pm-8:20 am

1 stop33h 15m

Vienna Intl

Wed 4/29

10:45 am-11:57 pm

1 stop20h 12m

$514

St. LouisVienna

STL - VIE

STLVIE

Lambert-St Louis

Sat 4/18

4:05 pm-9:10 am

2 stops58h 05m

Vienna Intl

Wed 4/29

11:00 am-3:24 pm

2 stops35h 24m

$516

St. LouisSalzburg

STL - SZG

STLSZG

Lambert-St Louis

Mon 7/6

1:13 pm-9:45 am

2 stops13h 32m

Salzburg W.A. Mozart

Wed 7/8

6:00 am-1:25 pm

1 stop14h 25m

$945

St. LouisSalzburg

STL - SZG

STLSZG

Lambert-St Louis

Tue 7/14

3:30 pm-1:35 pm

1 stop15h 05m

Salzburg W.A. Mozart

Mon 7/20

6:00 am-1:25 pm

1 stop14h 25m

$955

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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, February 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 $523. If you are unable to visit Austria during the month of February, then departing from St. Louis during the month January is also very affordable. Most momondo users find prices during this month for around $613.

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

You could potentially save up to 12% 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

Fastest flight time

11h 15m

Direct flights

None
The fastest flight from St. Louis to Austria takes 11h 15m
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 $503Free CancellationRating
6.8
7,777 reviews
Search Lufthansa flights
United AirlinesPriceFrom $572Free CancellationRating
7.4
9,268 reviews
Search United Airlines flights
Air CanadaPriceFrom $645Free CancellationRating
7.1
10,701 reviews
Search Air Canada 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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