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Cheap flights from St. Louis to Austria from $348

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 12/2. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Austria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 10:40 pmSTL  Lambert-St Louis-VIE Vienna Intl
23h 35m2 stops Toronto Pearson Intl London Heathrow
Air Canada Logo
10:40 am - 10:32 amVIE  Vienna Intl-STL Lambert-St Louis
30h 52m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$752Air Canada
Sun, Nov 15 - Thu, Nov 19
United Airlines Logo
3:15 pm - 12:20 pmSTL  Lambert-St Louis-VIE Vienna Intl
14h 05m2 stops Chicago O'Hare Intl London Heathrow
United Airlines Logo
10:35 am - 2:30 pmVIE  Vienna Intl-STL Lambert-St Louis
34h 55m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$754United Airlines
Sun, Jan 31 - Wed, Feb 3
Air Canada Logo
4:05 pm - 8:45 amSTL  Lambert-St Louis-VIE Vienna Intl
33h 40m1 stop Toronto Pearson Intl
Air Canada Logo
10:40 am - 10:32 amVIE  Vienna Intl-STL Lambert-St Louis
30h 52m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$756Air Canada
Sun, Nov 15 - Thu, Nov 19
United Airlines Logo
8:25 am - 8:30 amSTL  Lambert-St Louis-VIE Vienna Intl
17h 05m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
10:35 am - 12:06 pmVIE  Vienna Intl-STL Lambert-St Louis
32h 31m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$757United Airlines
Sun, Jan 31 - Wed, Feb 3
Air Canada Logo
4:05 pm - 9:10 amSTL  Lambert-St Louis-VIE Vienna Intl
34h 05m2 stops Toronto Pearson Intl London Heathrow
Air Canada Logo
10:35 am - 12:10 pmVIE  Vienna Intl-STL Lambert-St Louis
32h 35m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$757Air Canada
Sun, Nov 15 - Thu, Nov 19
United Airlines Logo
6:00 am - 8:00 amSTL  Lambert-St Louis-VIE Vienna Intl
19h 00m1 stop Newark
United Airlines Logo
10:35 am - 12:10 pmVIE  Vienna Intl-STL Lambert-St Louis
32h 35m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$757United Airlines
Sun, Nov 15 - Thu, Nov 19
Multiple Airlines Logo
4:05 pm - 8:45 amSTL  Lambert-St Louis-VIE Vienna Intl
33h 40m1 stop Toronto Pearson Intl
Multiple Airlines Logo
6:30 pm - 1:45 pmVIE  Vienna Intl-STL Lambert-St Louis
26h 15m1 stop Frankfurt am Main
$767Multiple Airlines
Sun, Nov 15 - Thu, Nov 19
Lufthansa Logo
7:04 pm - 10:35 pmSTL  Lambert-St Louis-SZG Salzburg W.A. Mozart
20h 31m2 stops Chicago O'Hare Intl Frankfurt am Main
Lufthansa Logo
6:30 am - 1:45 pmSZG  Salzburg W.A. Mozart-STL Lambert-St Louis
14h 15m1 stop Frankfurt am Main
$843Lufthansa
Wed, Dec 2 - Wed, Dec 9
Lufthansa Logo
7:04 pm - 10:35 pmSTL  Lambert-St Louis-SZG Salzburg W.A. Mozart
20h 31m2 stops Chicago O'Hare Intl Frankfurt am Main
Lufthansa Logo
6:30 am - 1:45 pmSZG  Salzburg W.A. Mozart-STL Lambert-St Louis
14h 15m1 stop Frankfurt am Main
$846Lufthansa
Wed, Dec 2 - Wed, Dec 9
Lufthansa Logo
3:40 pm - 10:05 amSTL  Lambert-St Louis-SZG Salzburg W.A. Mozart
11h 25m1 stop Frankfurt am Main
Lufthansa Logo
6:30 am - 1:45 pmSZG  Salzburg W.A. Mozart-STL Lambert-St Louis
14h 15m1 stop Frankfurt am Main
$996Lufthansa
Wed, Dec 2 - Wed, Dec 9

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Austrian Airlines flights from St. Louis to Austria

Our best Austrian Airlines deals on St. Louis to Austria flight tickets
Austrian Airlines
Sep 12
STL12:59 pmLambert-St Louis
12h 16m
1 stop
VIE8:15 amVienna Intl
Sep 19
VIE10:30 amVienna Intl
34h 30m
1 stop
STL2:00 pmLambert-St Louis
$1,090
Austrian Airlines
Sep 5
STL12:59 pmLambert-St Louis
12h 16m
1 stop
VIE8:15 amVienna Intl
Sep 12
VIE10:45 amVienna Intl
17h 02m
1 stop
STL8:47 pmLambert-St Louis
$1,367
Austrian Airlines
Sep 1
STL12:27 pmLambert-St Louis
12h 23m
1 stop
VIE7:50 amVienna Intl
Sep 12
VIE10:45 amVienna Intl
17h 02m
1 stop
STL8:47 pmLambert-St Louis
$1,399

Air Canada flights from St. Louis to Austria

Our best Air Canada deals on St. Louis to Austria flight tickets
Air Canada
Nov 15
STL4:05 pmLambert-St Louis
23h 35m
2 stops
VIE10:40 pmVienna Intl
Nov 19
VIE10:40 amVienna Intl
30h 52m
2 stops
STL10:32 amLambert-St Louis
$752
Air Canada
Nov 15
STL4:05 pmLambert-St Louis
33h 40m
1 stop
VIE8:45 amVienna Intl
Nov 19
VIE10:40 amVienna Intl
30h 52m
2 stops
STL10:32 amLambert-St Louis
$756
Air Canada
Sep 29
STL12:10 pmLambert-St Louis
38h 00m
2 stops
VIE9:10 amVienna Intl
Oct 6
VIE10:30 amVienna Intl
32h 43m
2 stops
STL12:13 pmLambert-St Louis
$906

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 August 16, 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

Cheapest round-trip

St. LouisVienna

STL Lambert-St Louis - VIE Vienna Intl

STLVIE

Lambert-St Louis

Sun 11/15

4:05 pm-10:40 pm

2 stops23h 35m

Vienna Intl

Thu 11/19

10:40 am-10:32 am

2 stops30h 52m

$752

St. LouisVienna

STL Lambert-St Louis - VIE Vienna Intl

STLVIE

Lambert-St Louis

Sun 1/31

3:15 pm-12:20 pm

2 stops14h 05m

Vienna Intl

Wed 2/3

10:35 am-2:30 pm

2 stops34h 55m

$754

St. LouisVienna

STL Lambert-St Louis - VIE Vienna Intl

STLVIE

Lambert-St Louis

Sun 11/15

4:05 pm-8:45 am

1 stop33h 40m

Vienna Intl

Thu 11/19

10:40 am-10:32 am

2 stops30h 52m

$756

St. LouisVienna

STL Lambert-St Louis - VIE Vienna Intl

STLVIE

Lambert-St Louis

Sun 1/31

8:25 am-8:30 am

1 stop17h 05m

Vienna Intl

Wed 2/3

10:35 am-12:06 pm

2 stops32h 31m

$757

St. LouisVienna

STL Lambert-St Louis - VIE Vienna Intl

STLVIE

Lambert-St Louis

Sun 11/15

4:05 pm-9:10 am

2 stops34h 05m

Vienna Intl

Thu 11/19

10:35 am-12:10 pm

2 stops32h 35m

$757

St. LouisVienna

STL Lambert-St Louis - VIE Vienna Intl

STLVIE

Lambert-St Louis

Sun 11/15

6:00 am-8:00 am

1 stop19h 00m

Vienna Intl

Thu 11/19

10:35 am-12:10 pm

2 stops32h 35m

$757

St. LouisVienna

STL Lambert-St Louis - VIE Vienna Intl

STLVIE

Lambert-St Louis

Sun 11/15

4:05 pm-8:45 am

1 stop33h 40m

Vienna Intl

Thu 11/19

6:30 pm-1:45 pm

1 stop26h 15m

$767

St. LouisSalzburg

STL Lambert-St Louis - SZG Salzburg W.A. Mozart

STLSZG

Lambert-St Louis

Wed 12/2

7:04 pm-10:35 pm

2 stops20h 31m

Salzburg W.A. Mozart

Wed 12/9

6:30 am-1:45 pm

1 stop14h 15m

$843

St. LouisSalzburg

STL Lambert-St Louis - SZG Salzburg W.A. Mozart

STLSZG

Lambert-St Louis

Wed 12/2

7:04 pm-10:35 pm

2 stops20h 31m

Salzburg W.A. Mozart

Wed 12/9

6:30 am-1:45 pm

1 stop14h 15m

$846
Quickest round-trip

St. LouisSalzburg

STL Lambert-St Louis - SZG Salzburg W.A. Mozart

STLSZG

Lambert-St Louis

Wed 12/2

3:40 pm-10:05 am

1 stop11h 25m

Salzburg W.A. Mozart

Wed 12/9

6:30 am-1:45 pm

1 stop14h 15m

$996

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 $543. 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 8% 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.
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Frequently asked questions about flying from St. Louis to Austria

  • 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
8,195 reviews
Search Lufthansa flights
United AirlinesPriceFrom $555Free CancellationRating
7.4
10,111 reviews
Search United 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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