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$699+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
KLU — ORD
kwi 6 — kwi 131
ndz. 4/6
ndz. 4/13
1 adult, Economy
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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 Kwiecień 1, 2025.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$699
(Flysmarter)
Provider with most accurate pricing for Klagenfurt-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Klagenfurt-Chicago (CHI) flights.
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From Klagenfurt to Illinois
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Find flight deals from Klagenfurt to Illinois

Cheapest flights from Klagenfurt to Illinois
Explore the most affordable flight options available from Klagenfurt to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Kwiecień 1, 2025.

This Flysmarter deal was found by Cheapflights users on 3/31. 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.
pon. 5/55:45 amKLU - ORD
1 stop14h 35mMultiple Airlines
wt. 5/134:00 pmORD - KLU
2 stops15h 00mMultiple Airlines
Deal found 3/31$699
This Austrian Airlines deal was found by Cheapflights users on 3/31. 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.
śr. 4/163:00 pmKLU - ORD
1 stop29h 20mAustrian Airlines
ndz. 4/204:05 pmORD - KLU
2 stops38h 55mAustrian Airlines
Deal found 3/31$710
This flugladen.de deal was found by Cheapflights users on 3/31. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
śr. 4/163:00 pmKLU - ORD
1 stop29h 20mBrussels Airlines
ndz. 4/204:20 pmORD - KLU
1 stop14h 40mBrussels Airlines
Deal found 3/31$718
This Flysmarter deal was found by Cheapflights users on 3/31. 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.
śr. 4/165:45 amKLU - ORD
3 stops17h 06mAir Canada
ndz. 4/2011:30 amORD - KLU
2 stops19h 30mAir Canada
Deal found 3/31$1,335

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 Kwiecień 1, 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

pon. 5/5

5:45 am-1:20 pm

1 stop14h 35m

Chicago O'Hare Intl

wt. 5/13

4:00 pm-2:00 pm

2 stops15h 00m

$699

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

śr. 4/16

3:00 pm-1:20 pm

1 stop29h 20m

Chicago O'Hare Intl

ndz. 4/20

4:05 pm-2:00 pm

2 stops38h 55m

$710

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

śr. 4/16

3:00 pm-1:20 pm

1 stop29h 20m

Chicago O'Hare Intl

ndz. 4/20

4:20 pm-2:00 pm

1 stop14h 40m

$718

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

śr. 4/16

5:45 am-3:51 pm

3 stops17h 06m

Chicago O'Hare Intl

ndz. 4/20

11:30 am-2:00 pm

2 stops19h 30m

$1,335

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

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

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated Kwiecień 1, 2025.
Austrian Airlines
7.6
Good
771 reviews

Comfort

7.3

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

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
771 reviews
Austrian Airlines
7.6
Good
771 reviews

Comfort

7.3

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

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.
Brussels Airlines
7.4
Good
345 reviews
Austrian Airlines
7.6
Good
771 reviews

Comfort

7.3

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

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
9,013 reviews
Austrian Airlines
7.6
Good
771 reviews

Comfort

7.3

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

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 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.

  • 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.

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

    Currently, August is the cheapest month in which you can book a flight from Klagenfurt to Illinois (average of $245). Flying from Klagenfurt to Illinois in March is currently the most expensive (average of $323). 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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