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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 November , December 2026

24 Nov - 11 Dec $ 1,269.00
DEN
Denver
Frontier Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Frontier Airlines
3 STOPS
DEN
Denver
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14 Nov - 14 Dec $ 1,440.00
DEN
Denver
JetBlue Airways
2 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
JetBlue Airways
3 STOPS
DEN
Denver
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14 Nov - 11 Dec $ 1,452.00
DEN
Denver
Frontier Airlines
2 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Frontier Airlines
3 STOPS
DEN
Denver
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Last minute flights from Denver to Klagenfurt

24 Nov - 01 Dec $ 1,647.00
DEN
Denver
Frontier Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Frontier Airlines
3 STOPS
DEN
Denver
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22 Nov - 01 Dec $ 1,732.00
DEN
Denver
Frontier Airlines
3 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Frontier Airlines
3 STOPS
DEN
Denver
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14 Nov - 01 Dec $ 1,836.00
DEN
Denver
Frontier Airlines
2 STOPS
KLU
Klagenfurt
KLU
Klagenfurt
Frontier Airlines
3 STOPS
DEN
Denver
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One-way flights to Klagenfurt from Denver

5:40 PM - 9:45 AM
Air Canada
2 Stops
32h 50m
DEN - KLU
$ 604
Kiwi
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11:25 AM - 9:45 AM
Air Canada
2 Stops
15h 5m
DEN - KLU
$ 645
Kiwi
Pick dates
5:40 PM - 9:45 AM
Air Canada
2 Stops
32h 50m
DEN - KLU
$ 654
Kiwi
Pick dates

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.