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Cheap flights from Chicago to Klagenfurt from $876

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Klagenfurt departing on 9/13. 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 Chicago to Klagenfurt

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:15 pm - 2:00 pm
ORD
-
KLU
35h 45m
3 stops
Multiple Airlines Logo
5:50 am - 4:10 pm
KLU
-
ORD
41h 20m
3 stops
$1,117Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
9:55 am - 2:00 pm
ORD
-
KLU
21h 05m
2 stops
Multiple Airlines Logo
3:00 pm - 1:20 pm
KLU
-
ORD
29h 20m
1 stop
$1,131Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
7:25 pm - 2:00 pm
ORD
-
KLU
35h 35m
3 stops
Multiple Airlines Logo
3:00 pm - 3:10 pm
KLU
-
ORD
31h 10m
2 stops
$1,148Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Air Canada Logo
9:55 am - 2:00 pm
ORD
-
KLU
21h 05m
2 stops
Air Canada Logo
5:50 am - 8:12 pm
KLU
-
ORD
21h 22m
2 stops
$1,187Air Canada
Mon, Sep 14 - Mon, Sep 21
Air Canada Logo
1:55 pm - 2:00 pm
ORD
-
KLU
17h 05m
2 stops
Air Canada Logo
5:45 am - 2:52 pm
KLU
-
ORD
40h 07m
2 stops
$1,217Air Canada
Thu, Nov 12 - Mon, Nov 16

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Air Canada flights from Chicago to Klagenfurt

Our best Air Canada deals on Chicago to Klagenfurt flight tickets
Air Canada
Sep 14
ORD9:55 amChicago O'Hare Intl
21h 05m
2 stops
KLU2:00 pmKlagenfurt
Sep 21
KLU5:50 amKlagenfurt
21h 22m
2 stops
ORD8:12 pmChicago O'Hare Intl
$1,187
Air Canada
Nov 12
ORD1:55 pmChicago O'Hare Intl
17h 05m
2 stops
KLU2:00 pmKlagenfurt
Nov 16
KLU5:45 amKlagenfurt
40h 07m
2 stops
ORD2:52 pmChicago O'Hare Intl
$1,217

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 August 3, 2026.
Use the filters below to find and compare flights from Chicago to Klagenfurt that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Mon 9/14

7:15 pm-2:00 pm

3 stops35h 45m

Klagenfurt

Mon 9/21

5:50 am-4:10 pm

3 stops41h 20m

$1,117

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Mon 9/14

9:55 am-2:00 pm

2 stops21h 05m

Klagenfurt

Mon 9/21

3:00 pm-1:20 pm

1 stop29h 20m

$1,131

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Mon 9/14

7:25 pm-2:00 pm

3 stops35h 35m

Klagenfurt

Mon 9/21

3:00 pm-3:10 pm

2 stops31h 10m

$1,148
Quickest round-trip

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Mon 9/14

9:55 am-2:00 pm

2 stops21h 05m

Klagenfurt

Mon 9/21

5:50 am-8:12 pm

2 stops21h 22m

$1,187

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 11/12

1:55 pm-2:00 pm

2 stops17h 05m

Klagenfurt

Mon 11/16

5:45 am-2:52 pm

2 stops40h 07m

$1,217
Cheapest one-way
Quickest one-way

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Sun 9/13

4:20 pm-2:00 pm

1 stop14h 40m

$876

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Sun 9/13

9:50 am-2:00 pm

2 stops21h 10m

$893

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 Chicago 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 Chicago to Klagenfurt?

Austrian Airlines and Air Canada are the most popular carriers operating from Chicago to Klagenfurt

When to book flights from Chicago to Klagenfurt

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

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

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

Fastest flight time

17h 05m

Direct flights

None
The fastest flight from Chicago to Klagenfurt takes 17h 05m
There are no direct flights from Chicago to Klagenfurt. There are no popular flight routes from Chicago to Klagenfurt.
Search flight deals

Frequently asked questions about flying from Chicago to Klagenfurt

  • How far is Chicago to Klagenfurt by plane?

    Chicago and Klagenfurt are 4674.3 mi apart from one another. In terms of flight time, this usually takes a little over 17h 05m.

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

    Prices for flights from Chicago to Klagenfurt Airport are refreshed on a daily basis.

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

    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 Chicago 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 Chicago to Klagenfurt?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Klagenfurt. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Chicago to Klagenfurt flights to just show those with flexible booking policies.

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

Once all potential Chicago to Klagenfurt flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Klagenfurt, momondo offers a useful price alert feature which will track prices for flights to Klagenfurt from Chicago and alert you when they change.

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