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Cheap flights from Chicago to Klagenfurt from $1,159

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Klagenfurt departing on 1/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago to Klagenfurt

Cheap round-trip flights

Lufthansa Logo
9:50 pm - 10:30 amORD-KLU
29h 40m2 stops
Lufthansa Logo
3:15 pm - 1:10 pmKLU-ORD
28h 55m2 stops
$1,159Lufthansa
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Thu, Jan 22 - Mon, Jan 26

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 September 16, 2025.
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

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 1/22

9:50 pm-10:30 am

2 stops29h 40m

Klagenfurt

Mon 1/26

3:15 pm-1:10 pm

2 stops28h 55m

$1,159

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Direct flights

None
There are no direct flights from Chicago to Klagenfurt. There are no popular flight routes from Chicago to Klagenfurt.
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  • 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 29h 40m.

  • 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.

  • How do I get Price Alerts for flights from Chicago to Klagenfurt?

    Price Alerts will notify you by email when the price for flights to Klagenfurt from Chicago decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Chicago to Klagenfurt with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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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