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Cheap flights from St Louis (STL) to Klagenfurt (KLU)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from St Louis (STL) to Klagenfurt (KLU)

How to find the cheapest flight from St Louis (STL) to Klagenfurt (KLU)
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How to find the cheapest flight from St Louis (STL) to Klagenfurt (KLU)
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How to find the cheapest flight from St Louis (STL) to Klagenfurt (KLU)
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Cheap flights from St Louis to Klagenfurt in November , December 2025

30 Nov - 15 Dec $ 1,742.00
STL
St Louis
Frontier Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Frontier Airlines
3 STOPS
STL
St Louis
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30 Nov - 11 Dec $ 1,798.00
STL
St Louis
Hawaiian Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Hawaiian Airlines
3 STOPS
STL
St Louis
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30 Nov - 08 Dec $ 1,803.00
STL
St Louis
Alaska Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Alaska Airlines
3 STOPS
STL
St Louis
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Last minute flights from St Louis to Klagenfurt

28 Nov - 02 Dec $ 2,205.00
STL
St Louis
Frontier Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Frontier Airlines
3 STOPS
STL
St Louis
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28 Nov - 01 Dec $ 2,241.00
STL
St Louis
Frontier Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Frontier Airlines
3 STOPS
STL
St Louis
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One-way flights to Klagenfurt from St Louis

7:02 PM - 10:35 PM
Austrian Airlines
3 Stops
45h 23m
STL - KLU
$ 905
Kiwi
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3:14 PM - 1:05 PM
Austrian Airlines
3 Stops
39h 41m
STL - KLU
$ 941
Kiwi
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8:40 AM - 1:05 PM
Austrian Airlines
3 Stops
22h 15m
STL - KLU
$ 1,050
Kiwi
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How to find the cheapest flight from St Louis (STL) to Klagenfurt (KLU)

Related info for your journey
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How to find the cheapest flight from St Louis (STL) to Klagenfurt (KLU)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Klagenfurt (KLU)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.