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Cheap flights from Klagenfurt to Chicago from $1,745

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Klagenfurt to Chicago departing on 10/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Klagenfurt to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Austrian Airlines Logo
11:10 am - 1:20 pm
KLU
-
ORD
33h 10m
1 stop
Austrian Airlines Logo
11:07 am - 1:25 pm
ORD
-
KLU
19h 18m
2 stops
$5,669Austrian Airlines
Thu, Jul 2 - Thu, Jul 23
Multiple Airlines Logo
11:10 am - 6:15 pm
KLU
-
ORD
14h 05m
2 stops
Multiple Airlines Logo
11:07 am - 1:25 pm
ORD
-
KLU
19h 18m
2 stops
$5,699Multiple Airlines
Thu, Jul 2 - Thu, Jul 23
Austrian Airlines Logo
11:10 am - 1:20 pm
KLU
-
ORD
33h 10m
1 stop
Austrian Airlines Logo
4:20 pm - 1:25 pm
ORD
-
KLU
14h 05m
1 stop
$6,003Austrian Airlines
Thu, Jul 2 - Thu, Jul 23
Austrian Airlines Logo
5:50 am - 1:20 pm
KLU
-
ORD
14h 30m
1 stop
Austrian Airlines Logo
12:55 pm - 2:00 pm
ORD
-
KLU
18h 05m
2 stops
$6,074Austrian Airlines
Mon, Oct 5 - Wed, Oct 7
Austrian Airlines Logo
5:50 am - 12:00 pm
KLU
-
ORD
13h 10m
2 stops
Austrian Airlines Logo
12:55 pm - 2:00 pm
ORD
-
KLU
18h 05m
2 stops
$6,104Austrian Airlines
Mon, Oct 5 - Wed, Oct 7
Lufthansa Logo
5:50 am - 6:15 pm
KLU
-
ORD
19h 25m
2 stops
Lufthansa Logo
6:00 pm - 2:00 pm
ORD
-
KLU
13h 00m
2 stops
$6,381Lufthansa
Mon, Oct 5 - Wed, Oct 7
Multiple Airlines Logo
11:10 am - 6:15 pm
KLU
-
ORD
14h 05m
2 stops
Multiple Airlines Logo
9:40 pm - 2:00 pm
ORD
-
KLU
33h 20m
3 stops
$18,187Multiple Airlines
Thu, Jul 2 - Thu, Jul 23

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Austrian Airlines flights from Klagenfurt to Chicago

Our best Austrian Airlines deals on Klagenfurt to Chicago flight tickets
Austrian Airlines
Jul 2
KLU11:10 amKlagenfurt
33h 10m
1 stop
ORD1:20 pmChicago O'Hare Intl
Jul 23
ORD11:07 amChicago O'Hare Intl
19h 18m
2 stops
KLU1:25 pmKlagenfurt
$5,669
Austrian Airlines
Jul 2
KLU11:10 amKlagenfurt
33h 10m
1 stop
ORD1:20 pmChicago O'Hare Intl
Jul 23
ORD4:20 pmChicago O'Hare Intl
14h 05m
1 stop
KLU1:25 pmKlagenfurt
$6,003
Austrian Airlines
Oct 5
KLU5:50 amKlagenfurt
14h 30m
1 stop
ORD1:20 pmChicago O'Hare Intl
Oct 7
ORD12:55 pmChicago O'Hare Intl
18h 05m
2 stops
KLU2:00 pmKlagenfurt
$6,074

momondo 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, momondo users made 832,500 searches. Data last updated June 20, 2026.
Use the filters below to find and compare flights from Klagenfurt to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Thu 7/2

11:10 am-1:20 pm

1 stop33h 10m

Chicago O'Hare Intl

Thu 7/23

11:07 am-1:25 pm

2 stops19h 18m

$5,669

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Thu 7/2

11:10 am-6:15 pm

2 stops14h 05m

Chicago O'Hare Intl

Thu 7/23

11:07 am-1:25 pm

2 stops19h 18m

$5,699

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Thu 7/2

11:10 am-1:20 pm

1 stop33h 10m

Chicago O'Hare Intl

Thu 7/23

4:20 pm-1:25 pm

1 stop14h 05m

$6,003

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Mon 10/5

5:50 am-1:20 pm

1 stop14h 30m

Chicago O'Hare Intl

Wed 10/7

12:55 pm-2:00 pm

2 stops18h 05m

$6,074
Quickest round-trip

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Mon 10/5

5:50 am-12:00 pm

2 stops13h 10m

Chicago O'Hare Intl

Wed 10/7

12:55 pm-2:00 pm

2 stops18h 05m

$6,104

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Mon 10/5

5:50 am-6:15 pm

2 stops19h 25m

Chicago O'Hare Intl

Wed 10/7

6:00 pm-2:00 pm

2 stops13h 00m

$6,381

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Thu 7/2

11:10 am-6:15 pm

2 stops14h 05m

Chicago O'Hare Intl

Thu 7/23

9:40 pm-2:00 pm

3 stops33h 20m

$18,187
Cheapest one-way

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Mon 10/19

5:50 am-6:15 pm

3 stops19h 25m

$1,745

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Mon 10/19

3:00 pm-7:50 pm

2 stops35h 50m

$2,203
Quickest one-way

KlagenfurtChicago

KLU - ORD

KLUORD

Klagenfurt

Mon 10/19

5:50 am-1:20 pm

1 stop14h 30m

$5,450

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Chicago from

How to get the cheapest flight ticket from Klagenfurt to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Klagenfurt to Chicago?

Austrian Airlines is the most popular carrier operating from Klagenfurt to Chicago

When to book flights from Klagenfurt to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Klagenfurt to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Klagenfurt to Chicago (KLU to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Klagenfurt to Chicago

Fastest flight time

15h 45m

Direct flights

None
The fastest flight from Klagenfurt to Chicago takes 15h 45m
There are no direct flights from Klagenfurt to Chicago. There are no popular flight routes from Klagenfurt to Chicago.
Search flight deals

Frequently asked questions about flying from Klagenfurt to Chicago

  • How far is Klagenfurt to Chicago by plane?

    The straight-line distance from Klagenfurt to Chicago is 4674.3 mi. In terms of flight time, this usually takes a little over 15h 45m.

  • When did momondo last update prices for flights from Klagenfurt Airport to Chicago?

    Prices for flights from Klagenfurt Airport to Chicago refresh daily.

  • How old do you have to be to fly from Klagenfurt Airport to Chicago?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Klagenfurt Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Portage
Saint Joseph
Lansing
Valparaiso
Schererville
Munster
Crown Point
Chesterton
Monticello
Porter
Griffith
Saint John

Why use momondo?

Why should I use momondo to find a flight deal from Klagenfurt to Chicago?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Klagenfurt to Chicago. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Klagenfurt to Chicago with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Chicago from Klagenfurt with this policy.

How can momondo help me find flights from Klagenfurt to Chicago?

Once you have performed a search for Klagenfurt to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Klagenfurt to Chicago right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Klagenfurt to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport