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$918+ Cheap flights from Klagenfurt (KLU) to Denver (DEN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
KLU — DEN
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Find flight deals from Klagenfurt to Denver

Cheapest flights from Klagenfurt to Denver
Explore the most affordable flight options available from Klagenfurt to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This Gurufare deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/204:00 pmKLU - DEN
2 stops29h 40mLufthansa
dom. 1/2511:20 amDEN - KLU
3 stops18h 30mLufthansa
Deal found 10/30$1,238
This Orbitz deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/204:00 pmKLU - DEN
2 stops53h 40mMultiple Airlines
dom. 1/2511:15 amDEN - KLU
2 stops18h 35mMultiple Airlines
Deal found 10/30$1,244
This Air Canada deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/205:45 amKLU - DEN
2 stops22h 10mAir Canada
dom. 1/256:00 amDEN - KLU
3 stops23h 50mAir Canada
Deal found 10/30$1,478

Cheap flight deals from Klagenfurt to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Klagenfurt (KLU) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated octubre 30, 2025.

Round-trip from

$918
(Lufthansa)
From Klagenfurt to Denver Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Klagenfurt to Denver 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, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
Use the filters below to find and compare flights from Klagenfurt to Denver that are best for you.

Fly from

Klagenfurt

Fly to

Denver

Route

Depart

Return

Price

KlagenfurtDenver

KLU - DEN

KLUDEN

Klagenfurt

jue. 3/5

5:45 am-1:40 pm

2 stops15h 55m

Denver Intl

dom. 3/8

9:20 pm-11:25 pm

2 stops19h 05m

$918

KlagenfurtDenver

KLU - DEN

KLUDEN

Klagenfurt

sáb. 12/20

4:00 pm-1:40 pm

2 stops29h 40m

Denver Intl

dom. 1/25

11:20 am-1:50 pm

3 stops18h 30m

$1,238

KlagenfurtDenver

KLU - DEN

KLUDEN

Klagenfurt

sáb. 12/20

4:00 pm-1:40 pm

2 stops53h 40m

Denver Intl

dom. 1/25

11:15 am-1:50 pm

2 stops18h 35m

$1,244

KlagenfurtDenver

KLU - DEN

KLUDEN

Klagenfurt

sáb. 12/20

5:45 am-7:55 pm

2 stops22h 10m

Denver Intl

dom. 1/25

6:00 am-1:50 pm

3 stops23h 50m

$1,478

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Best time to book a flight from Klagenfurt to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Klagenfurt with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Klagenfurt to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Klagenfurt to Denver?

    A quick flight from Klagenfurt to Denver can take about 15h 55m. Lufthansa provides one of the quickest options available for as low as $918. Klagenfurt and Denver are separated by a distance of 5375 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Klagenfurt to Denver that include hotel bookings?

    Yes. In addition to deals on Klagenfurt to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Klagenfurt to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Klagenfurt to Denver.

  • Can I find deals for business class flights from Klagenfurt to Denver?

    Yes. Cheapflights offers flight deals from Klagenfurt to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
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Wheat Ridge
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Idaho Springs
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Sterling

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