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Klagenfurt

$991+ 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 7/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KLU
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
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 June 18, 2025.

Round-trip from

$991
(Ovago)
From Illinois to Klagenfurt
Search Deals

Find flight deals from Illinois to Klagenfurt

Cheapest flights from Illinois to Klagenfurt
Explore the most affordable flight options available from Illinois to Klagenfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

This Ovago deal was found by Cheapflights users on 6/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/179:40 pmORD - KLU
2 stops18h 45mLufthansa
Wed 8/135:45 amKLU - ORD
2 stops15h 15mLufthansa
Deal found 6/17$991
This Ovago deal was found by Cheapflights users on 6/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/179:35 pmORD - KLU
2 stops18h 50mAustrian Airlines
Wed 8/133:00 pmKLU - ORD
2 stops27h 25mAustrian Airlines
Deal found 6/18$1,059
This Gotogate deal was found by Cheapflights users on 6/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/244:20 pmORD - KLU
1 stop24h 05mMultiple Airlines
Thu 7/315:45 amKLU - ORD
2 stops14h 10mMultiple Airlines
Deal found 6/16$1,193
This Rumbo deal was found by Cheapflights users on 6/17. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/18:25 pmORD - KLU
3 stops34h 35mAir Canada
Fri 8/85:45 amKLU - ORD
2 stops18h 52mAir Canada
Deal found 6/17$2,796

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 June 18, 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

Thu 7/17

9:40 pm-11:25 pm

2 stops18h 45m

Klagenfurt

Wed 8/13

5:45 am-2:00 pm

2 stops15h 15m

$991

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 7/17

9:35 pm-11:25 pm

2 stops18h 50m

Klagenfurt

Wed 8/13

3:00 pm-11:25 am

2 stops27h 25m

$1,059

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 7/24

4:20 pm-11:25 pm

1 stop24h 05m

Klagenfurt

Thu 7/31

5:45 am-12:55 pm

2 stops14h 10m

$1,193

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Fri 8/1

8:25 pm-2:00 pm

3 stops34h 35m

Klagenfurt

Fri 8/8

5:45 am-5:37 pm

2 stops18h 52m

$2,796

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

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

Rainfall in Klagenfurt by month

Plan your trip to Klagenfurt by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Klagenfurt ranges from 1.6 - 4.3 inches per month. June is typically the wettest month, when rainfall can reach 4.3 in. January is typically the driest time to visit Klagenfurt when rainfall is around 1.6 in.

Temperature in Klagenfurt by month

Plan your trip to Klagenfurt by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Klagenfurt, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Klagenfurt

Get insights into the airlines that provide service to Klagenfurt. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Klagenfurt. Reviews last updated June 18, 2025.
Austrian Airlines
7.6
Good
804 reviews

Overall

7.6

Entertainment

6.8

Boarding

7.6

Food

6.8

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well
Austrian Airlines
7.6
Good
804 reviews
Austrian Airlines
7.6
Good
804 reviews

Overall

7.6

Entertainment

6.8

Boarding

7.6

Food

6.8

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well
Air Canada
7.1
Good
9,573 reviews
Austrian Airlines
7.6
Good
804 reviews

Overall

7.6

Entertainment

6.8

Boarding

7.6

Food

6.8

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well
Lufthansa
6.8
Okay
7,159 reviews
Austrian Airlines
7.6
Good
804 reviews

Overall

7.6

Entertainment

6.8

Boarding

7.6

Food

6.8

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well

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.

  • 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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