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Klagenfurt

$1,134+ Cheap flights from Illinois to Klagenfurt (KLU)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KLU
nov. 28 — dic. 51
vie. 11/28
vie. 12/5
1 adult, Economy
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Cheap flight deals from Illinois to Klagenfurt

Keep the following information in mind while searching for Illinois to Klagenfurt flight deals. Data was last updated octubre 29, 2025.

Round-trip from

$1,134
(Lufthansa)
From Illinois to Klagenfurt
Search Deals

Find flight deals from Illinois to Klagenfurt

Best flights from Illinois to Klagenfurt
Discover carefully curated flight deals from Illinois to Klagenfurt that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated octubre 29, 2025.

This Lufthansa deal was found by Cheapflights users on 10/26. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/229:50 pmORD - KLU
2 stops29h 40mLufthansa
lun. 1/263:15 pmKLU - ORD
2 stops28h 55mLufthansa
Deal found 10/26$1,134
This Travelocity deal was found by Cheapflights users on 10/27. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/1512:50 pmORD - KLU
2 stops18h 10mAir Canada
mié. 4/295:45 amKLU - ORD
2 stops19h 42mAir Canada
Deal found 10/27$1,798
This AranGrant deal was found by Cheapflights users on 10/27. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/159:40 pmORD - KLU
2 stops18h 45mMultiple Airlines
mié. 4/293:00 pmKLU - ORD
1 stop29h 20mMultiple Airlines
Deal found 10/27$1,842
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/159:40 pmORD - KLU
2 stops18h 45mLufthansa
mié. 4/295:45 amKLU - ORD
2 stops19h 30mLufthansa
Deal found 10/27$4,940

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Klagenfurt 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 29, 2025.
Use the filters below to find and compare flights from Illinois to Klagenfurt that are best for you.

Fly from

Illinois

Fly to

Klagenfurt

Route

Depart

Return

Price

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

jue. 1/22

9:50 pm-10:30 am

2 stops29h 40m

Klagenfurt

lun. 1/26

3:15 pm-1:10 pm

2 stops28h 55m

$1,134

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

mié. 4/15

12:50 pm-2:00 pm

2 stops18h 10m

Klagenfurt

mié. 4/29

5:45 am-6:27 pm

2 stops19h 42m

$1,798

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

mié. 4/15

9:40 pm-11:25 pm

2 stops18h 45m

Klagenfurt

mié. 4/29

3:00 pm-1:20 pm

1 stop29h 20m

$1,842

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

mié. 4/15

9:40 pm-11:25 pm

2 stops18h 45m

Klagenfurt

mié. 4/29

5:45 am-6:15 pm

2 stops19h 30m

$4,940

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Best time to book a flight from Illinois to Klagenfurt

Have a flexible travel schedule? Discover the best time to fly to Klagenfurt from Illinois 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Klagenfurt
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly into for flights to Klagenfurt from Illinois?

    Located just 2.0 mi from the city center, Klagenfurt (KLU) is the airport most travelers will use when flying to Klagenfurt from Illinois.

  • How long is the flight from Illinois to Klagenfurt?

    A quick flight from Illinois to Klagenfurt can take about 18h 10m. Lufthansa provides one of the quickest options available for as low as $1,798. There are 4679 mi between Illinois and Klagenfurt. 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 Illinois to Klagenfurt that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Klagenfurt 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

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