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$789+ Cheap flights from Klagenfurt (KLU) to Illinois

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
KLU — ORD
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find flight deals from Klagenfurt to Illinois

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

This Lufthansa deal was found by Cheapflights users on 10/28. 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.
Thu 3/122:50 pmKLU - ORD
2 stops31h 30mLufthansa
Sun 3/157:00 pmORD - KLU
2 stops12h 55mLufthansa
Deal found 10/28$789

Cheap flight deals from Klagenfurt to Illinois

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

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$789
(Lufthansa)
Provider with most accurate pricing for Klagenfurt-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Klagenfurt-Chicago (CHI) flights.
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From Klagenfurt to Illinois
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Cheapflights Fare Finder

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

Fly from

Klagenfurt

Fly to

Illinois

Route

Depart

Return

Price

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Thu 3/12

2:50 pm-4:20 pm

2 stops31h 30m

Chicago O'Hare Intl

Sun 3/15

7:00 pm-1:55 pm

2 stops12h 55m

$789

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Best time to book a flight from Klagenfurt to Illinois

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

Cheapflights Insights

Everything you need to know about your flight from Klagenfurt to Illinois
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 Klagenfurt to Illinois. 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 from for flights from Klagenfurt to Illinois?

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

  • How long is the flight from Klagenfurt to Illinois?

    A quick flight from Klagenfurt to Illinois can take about 31h 30m. Lufthansa provides one of the quickest options available for as low as $789. Klagenfurt and Illinois are separated by a distance of 4679 mi.

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

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

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

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

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

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

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