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Cheap flights from Denver (DEN) to Klagenfurt (KLU)

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How to find the cheapest flight from Denver (DEN) to Klagenfurt (KLU)

How to find the cheapest flight from Denver (DEN) to Klagenfurt (KLU)
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How to find the cheapest flight from Denver (DEN) to Klagenfurt (KLU)
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How to find the cheapest flight from Denver (DEN) to Klagenfurt (KLU)
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Cheap flights from Denver to Klagenfurt in March , April 2026

31 Mar - 11 Apr $ 1,243.00
DEN
Denver
Hawaiian Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Hawaiian Airlines
3 STOPS
DEN
Denver
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26 Mar - 11 Apr $ 1,385.00
DEN
Denver
Hawaiian Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Hawaiian Airlines
3 STOPS
DEN
Denver
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30 Mar - 11 Apr $ 1,419.00
DEN
Denver
Hawaiian Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Hawaiian Airlines
3 STOPS
DEN
Denver
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Last minute flights from Denver to Klagenfurt

26 Mar - 01 Apr $ 1,480.00
DEN
Denver
Frontier Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Frontier Airlines
3 STOPS
DEN
Denver
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26 Mar - 01 Apr $ 1,527.00
DEN
Denver
Icelandair
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Icelandair
3 STOPS
DEN
Denver
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18 Mar - 01 Apr $ 1,570.00
DEN
Denver
Icelandair
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Icelandair
3 STOPS
DEN
Denver
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One-way flights to Klagenfurt from Denver

4:40 PM - 1:20 PM
Austrian Airlines
3 Stops
37h 20m
DEN - KLU
$ 543
Kiwi
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4:40 PM - 10:35 PM
Austrian Airlines
3 Stops
23h 40m
DEN - KLU
$ 685
Kiwi
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6:40 AM - 1:20 PM
Austrian Airlines
3 Stops
23h 20m
DEN - KLU
$ 719
Kiwi
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How to find the cheapest flight from Denver (DEN) to Klagenfurt (KLU)

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