HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Klagenfurt

$1,007+ Cheap flights from Illinois to Klagenfurt (KLU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KLU
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Klagenfurt with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 May 1, 2025.

Round-trip from

$1,059
(Air Canada)

One-way from

$1,007
(EaseMyTrip)
From Illinois to Klagenfurt
Search Deals
One-way flight 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 May 1, 2025.

This Air Canada deal was found by Cheapflights users on 4/29. 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.
Fri 8/110:40 amORD - KLU
2 stops20h 20mMultiple Airlines
Fri 8/155:45 amKLU - ORD
2 stops20h 44mMultiple Airlines
Deal found 4/29$1,059
This Air Canada deal was found by Cheapflights users on 4/29. 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.
Fri 8/19:14 pmORD - KLU
3 stops33h 46mAir Canada
Fri 8/155:45 amKLU - ORD
2 stops20h 44mAir Canada
Deal found 4/29$1,066
This Austrian Airlines deal was found by Cheapflights users on 4/29. 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.
Fri 8/14:20 pmORD - KLU
1 stop14h 40mAustrian Airlines
Fri 8/155:45 amKLU - ORD
1 stop14h 35mAustrian Airlines
Deal found 4/29$1,153

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 May 1, 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

Fri 8/1

10:40 am-2:00 pm

2 stops20h 20m

Klagenfurt

Fri 8/15

5:45 am-7:29 pm

2 stops20h 44m

$1,059

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Fri 8/1

9:14 pm-2:00 pm

3 stops33h 46m

Klagenfurt

Fri 8/15

5:45 am-7:29 pm

2 stops20h 44m

$1,066

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Fri 8/1

4:20 pm-2:00 pm

1 stop14h 40m

Klagenfurt

Fri 8/15

5:45 am-1:20 pm

1 stop14h 35m

$1,153

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Sat 6/14

10:40 am-2:00 pm

2 stops20h 20m

$1,007

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Sat 6/14

4:20 pm-2:00 pm

1 stop14h 40m

$1,021

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Sat 6/14

9:25 pm-2:00 pm

3 stops33h 35m

$4,524

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 May 1, 2025.
Austrian Airlines
7.6
Good
781 reviews

Overall

7.6

Entertainment

6.7

Comfort

7.3

Boarding

7.6

Crew

8.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Austrian Airlines
7.6
Good
781 reviews
Austrian Airlines
7.6
Good
781 reviews

Overall

7.6

Entertainment

6.7

Comfort

7.3

Boarding

7.6

Crew

8.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Air Canada
7.0
Good
9,252 reviews
Austrian Airlines
7.6
Good
781 reviews

Overall

7.6

Entertainment

6.7

Comfort

7.3

Boarding

7.6

Crew

8.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Lufthansa
6.7
Okay
7,045 reviews
Austrian Airlines
7.6
Good
781 reviews

Overall

7.6

Entertainment

6.7

Comfort

7.3

Boarding

7.6

Crew

8.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Klagenfurt

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Vienna flights
John F Kennedy Intl to Vienna flights
Dulles Intl to Vienna flights
O'Hare Intl to Vienna flights
Los Angeles to Vienna flights
LaGuardia to Vienna flights
Boston to Vienna flights
Reagan-National to Vienna flights
Baltimore to Vienna flights
Seattle to Vienna flights
San Francisco to Vienna flights
Miami to Vienna flights
Midway to Vienna flights
Atlanta to Vienna flights
Ontario to Vienna flights
Orlando to Vienna flights
Denver to Vienna flights
Portland to Vienna flights
Minneapolis to Vienna flights
Philadelphia to Vienna flights
Hobby to Vienna flights
Detroit to Vienna flights
Sky Harbor Intl to Vienna flights
George Bush Intcntl to Vienna flights
Raleigh to Vienna flights
Salt Lake City to Vienna flights
Pittsburgh to Vienna flights
Charlotte to Vienna flights
Dallas/Fort Worth to Vienna flights
Tampa to Vienna flights
Fort Lauderdale to Vienna flights
San Diego to Vienna flights
John F Kennedy Intl to Salzburg flights
Nashville to Vienna flights
LaGuardia to Salzburg flights
Boston to Salzburg flights
Newark to Salzburg flights
Stewart to Vienna flights
Cleveland to Vienna flights
Seattle to Innsbruck flights
Jacksonville to Vienna flights
Austin to Vienna flights
St. Louis to Vienna flights
Des Moines to Vienna flights
San Jose to Vienna flights
San Francisco to Salzburg flights
Sacramento to Vienna flights
Dulles Intl to Salzburg flights
Seattle to Salzburg flights
Indianapolis to Vienna flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.