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$983+ Cheap flights from Klagenfurt (KLU) to Chicago (CHI)

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
KLU — CHI
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Find flight deals from Klagenfurt to Chicago

Cheapest flights from Klagenfurt to Chicago
Explore the most affordable flight options available from Klagenfurt to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/63:00 pmKLU - ORD
2 stops30h 55mLufthansa
vie. 8/296:25 pmORD - KLU
2 stops36h 35mLufthansa
Deal found 7/30$983
This Austrian Airlines deal was found by Cheapflights users on 7/30. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/63:00 pmKLU - ORD
2 stops30h 10mAustrian Airlines
vie. 8/294:20 pmORD - KLU
1 stop14h 40mAustrian Airlines
Deal found 7/30$1,118
This Flysmarter deal was found by Cheapflights users on 7/30. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/65:45 amKLU - ORD
2 stops15h 00mMultiple Airlines
vie. 8/299:11 pmORD - KLU
3 stops33h 49mMultiple Airlines
Deal found 7/30$1,360

Best time to book a flight from Klagenfurt to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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 Chicago
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Related info for your journey

Find useful and relevant information for your journey from Klagenfurt to Chicago. 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 Chicago?

    If you book a flight to Chicago from Klagenfurt, you will be flying from Klagenfurt, which is the city’s only airport. Klagenfurt (KLU) is located 2.0 mi from the center of Klagenfurt. There are 0 flights from Klagenfurt to Chicago per day from 0 different airlines.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Klagenfurt to Chicago?

    Currently, August is the cheapest month in which you can book a flight from Klagenfurt to Chicago (average of $245). Flying from Klagenfurt to Chicago in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Traveling to a place near Chicago?

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Hammond
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Porter
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Chesterton

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