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$699+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
KLU — CHI
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Klagenfurt to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Klagenfurt (KLU) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 31, 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 Chicago (CHI)
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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 March 31, 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.
Mon 5/55:45 amKLU - ORD
1 stop14h 35mMultiple Airlines
Tue 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.
Wed 4/163:00 pmKLU - ORD
1 stop29h 20mAustrian Airlines
Sun 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.
Wed 4/163:00 pmKLU - ORD
1 stop29h 20mBrussels Airlines
Sun 4/204:20 pmORD - KLU
1 stop14h 40mBrussels Airlines
Deal found 3/31$718
This Lufthansa deal was found by Cheapflights users on 3/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/83:00 pmKLU - ORD
2 stops28h 55mLufthansa
Wed 7/2310:30 pmORD - KLU
2 stops17h 55mLufthansa
Deal found 3/30$726
This Air Canada deal was found by Cheapflights users on 3/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/75:45 amKLU - ORD
2 stops40h 06mAir Canada
Fri 7/253:35 pmORD - KLU
2 stops39h 25mAir Canada
Deal found 3/30$1,192

Cheapflights Fare Finder

Customize your flight search to find flights from Klagenfurt to Chicago 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 March 31, 2025.
Use the filters below to find and compare flights from Klagenfurt to Chicago that are best for you.

Fly from

Klagenfurt

Fly to

Chicago

Route

Depart

Return

Price

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Mon 5/5

5:45 am-1:20 pm

1 stop14h 35m

Chicago O'Hare Intl

Tue 5/13

4:00 pm-2:00 pm

2 stops15h 00m

$699

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Wed 4/16

3:00 pm-1:20 pm

1 stop29h 20m

Chicago O'Hare Intl

Sun 4/20

4:05 pm-2:00 pm

2 stops38h 55m

$710

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Wed 4/16

3:00 pm-1:20 pm

1 stop29h 20m

Chicago O'Hare Intl

Sun 4/20

4:20 pm-2:00 pm

1 stop14h 40m

$718

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Tue 7/8

3:00 pm-12:55 pm

2 stops28h 55m

Chicago O'Hare Intl

Wed 7/23

10:30 pm-11:25 pm

2 stops17h 55m

$726

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Mon 7/7

5:45 am-2:51 pm

2 stops40h 06m

Chicago O'Hare Intl

Fri 7/25

3:35 pm-2:00 pm

2 stops39h 25m

$1,192

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

  • Most accurate provider: When it comes to deals on Klagenfurt-Chicago flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Klagenfurt-Chicago flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Klagenfurt-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Klagenfurt-Chicago flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Klagenfurt-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Rainfall in Chicago by month

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

In terms of precipitation, rainfall in Chicago 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 Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

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

If weather is an important factor for your trip to Chicago, 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 Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated March 31, 2025.
Austrian Airlines
7.6
Good
770 reviews

Boarding

7.6

Crew

8.1

Entertainment

6.7

Comfort

7.3

Overall

7.6

Food

6.8

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
770 reviews
Austrian Airlines
7.6
Good
770 reviews

Boarding

7.6

Crew

8.1

Entertainment

6.7

Comfort

7.3

Overall

7.6

Food

6.8

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
770 reviews

Boarding

7.6

Crew

8.1

Entertainment

6.7

Comfort

7.3

Overall

7.6

Food

6.8

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
9,001 reviews
Austrian Airlines
7.6
Good
770 reviews

Boarding

7.6

Crew

8.1

Entertainment

6.7

Comfort

7.3

Overall

7.6

Food

6.8

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
6,961 reviews
Austrian Airlines
7.6
Good
770 reviews

Boarding

7.6

Crew

8.1

Entertainment

6.7

Comfort

7.3

Overall

7.6

Food

6.8

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 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 $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.

See more FAQs

Traveling to a place near Klagenfurt?

Book flights to Klagenfurt if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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