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Cheap flights from Illinois to Klagenfurt from $419

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Klagenfurt departing on 8/13. 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 Illinois to Klagenfurt

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
3:55 pm - 2:00 pm
ORD
-
KLU
39h 05m
2 stops
Air Canada Logo
5:45 am - 2:55 pm
KLU
-
ORD
40h 10m
2 stops
$1,843Air Canada
Sun, Dec 6 - Thu, Dec 10

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Air Canada flights from Illinois to Klagenfurt

Our best Air Canada deals on Illinois to Klagenfurt flight tickets
Air Canada
Dec 6
ORD3:55 pmChicago O'Hare Intl
39h 05m
2 stops
KLU2:00 pmKlagenfurt
Dec 10
KLU5:45 amKlagenfurt
19h 42m
2 stops
ORD6:27 pmChicago O'Hare Intl
$1,842
Air Canada
Dec 6
ORD3:55 pmChicago O'Hare Intl
39h 05m
2 stops
KLU2:00 pmKlagenfurt
Dec 10
KLU5:45 amKlagenfurt
40h 10m
2 stops
ORD2:55 pmChicago O'Hare Intl
$1,843

momondo 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, momondo users made 832,500 searches. Data last updated June 10, 2026.
Use the filters below to find and compare flights from Illinois to Klagenfurt that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Sun 12/6

3:55 pm-2:00 pm

2 stops39h 05m

Klagenfurt

Thu 12/10

5:45 am-2:55 pm

2 stops40h 10m

$1,843
Cheapest one-way

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 8/13

7:25 pm-11:15 am

3 stops32h 50m

$419

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Fri 8/14

7:25 pm-9:50 am

3 stops55h 25m

$422

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 8/13

3:45 pm-11:15 am

2 stops36h 30m

$475

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Fri 8/14

6:00 pm-2:20 pm

2 stops37h 20m

$600
Quickest one-way

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 8/13

4:20 pm-1:25 pm

1 stop14h 05m

$947

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Fri 8/14

4:20 pm-2:00 pm

1 stop14h 40m

$959

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Klagenfurt from

How to get the cheapest flight ticket from Illinois to Klagenfurt

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 Illinois to Klagenfurt?

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

Cheap Illinois to Klagenfurt flight deals and tips

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

Fastest flight time

39h 05m

Direct flights

None
The fastest flight from Illinois to Klagenfurt takes 39h 05m
There are no direct flights from Illinois to Klagenfurt. There are no popular flight routes from Illinois to Klagenfurt.
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Frequently asked questions about flying from Illinois to Klagenfurt

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

    Prices for flights from Illinois to Klagenfurt Airport were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Klagenfurt Airport.

  • What documentation or ID do you need to fly to Klagenfurt Airport?

    The travel and health documents you'll need for your trip to Klagenfurt Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Klagenfurt Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Klagenfurt?

Book flights to Klagenfurt if you plan to visit one of these locations
Bad Kleinkirchheim

Why use momondo?

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

It is quick and easy to find Illinois to Klagenfurt flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Klagenfurt that suits you.

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

momondo does allow users to show only those flights to Klagenfurt from Illinois which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Illinois to Klagenfurt 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 Illinois to Klagenfurt right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to Klagenfurt now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Klagenfurt and let you know when they change.

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