Which airlines fly to Klagenfurt?

When flying to Klagenfurt from United States, momondo travelers will most often fly with one of these popular airlines: Lufthansa or Austrian Airlines. Depending on what airport in United States you fly from, you may be able to find flights with any of these popular airlines.

$879 Cheap Flights to Klagenfurt in 2026/27

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Find the cheapest flights from the United States to Klagenfurt

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Cheap round-trip flights

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12:30 am - 11:25 amJFK New York John F Kennedy Intl-KLU Klagenfurt

28h 55m1 stop Rome Fiumicino

4:15 pm - 10:30 pmKLU Klagenfurt-JFK New York John F Kennedy Intl

36h 15m2 stops Palma de Mallorca Son Sant Joan Rome Fiumicino

$879Multiple Airlines

Tue, Oct 13 - Sun, Oct 18

12:55 pm - 10:30 amATL Atlanta Hartsfield-Jackson-KLU Klagenfurt

15h 35m2 stops Montreal Pierre Elliott Trudeau Intl Vienna Intl

11:40 am - 2:40 pmKLU Klagenfurt-ATL Atlanta Hartsfield-Jackson

33h 00m2 stops Vienna Intl Frankfurt am Main

$1,009Multiple Airlines

Thu, Nov 26 - Mon, Nov 30

11:11 am - 10:30 amATL Atlanta Hartsfield-Jackson-KLU Klagenfurt

17h 19m3 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl Vienna Intl

11:40 am - 2:40 pmKLU Klagenfurt-ATL Atlanta Hartsfield-Jackson

33h 00m2 stops Vienna Intl Frankfurt am Main

$1,042Multiple Airlines

Thu, Nov 26 - Mon, Nov 30

12:30 am - 11:25 amJFK New York John F Kennedy Intl-KLU Klagenfurt

28h 55m1 stop Rome Fiumicino

3:05 pm - 10:30 pmKLU Klagenfurt-JFK New York John F Kennedy Intl

13h 25m1 stop Rome Fiumicino

$1,183Multiple Airlines

Tue, Oct 13 - Sun, Oct 18

9:55 am - 10:30 amIAD Washington, D.C. Dulles Intl-KLU Klagenfurt

18h 35m2 stops Toronto Pearson Intl Vienna Intl

11:15 am - 9:05 pmKLU Klagenfurt-IAD Washington, D.C. Dulles Intl

39h 50m2 stops Vienna Intl Toronto Pearson Intl

$1,835Multiple Airlines

Tue, Dec 22 - Mon, Jan 4

9:55 am - 10:30 amIAD Washington, D.C. Dulles Intl-KLU Klagenfurt

18h 35m2 stops Toronto Pearson Intl Vienna Intl

11:15 am - 2:10 pmKLU Klagenfurt-IAD Washington, D.C. Dulles Intl

32h 55m1 stop Vienna Intl

$1,852Multiple Airlines

Tue, Dec 22 - Mon, Jan 4

9:55 am - 10:30 amIAD Washington, D.C. Dulles Intl-KLU Klagenfurt

18h 35m2 stops Toronto Pearson Intl Vienna Intl

11:15 am - 2:10 pmKLU Klagenfurt-IAD Washington, D.C. Dulles Intl

32h 55m1 stop Vienna Intl

$1,871Austrian Airlines

Tue, Dec 22 - Tue, Jan 5

9:55 am - 10:30 amIAD Washington, D.C. Dulles Intl-KLU Klagenfurt

18h 35m2 stops Toronto Pearson Intl Vienna Intl

11:15 am - 8:05 pmKLU Klagenfurt-IAD Washington, D.C. Dulles Intl

14h 50m2 stops Vienna Intl Munich Franz Josef Strauss

$1,885Lufthansa

Tue, Dec 22 - Tue, Jan 5

10:09 pm - 10:30 amIAD Washington, D.C. Dulles Intl-KLU Klagenfurt

30h 21m2 stops Toronto Pearson Intl Vienna Intl

11:15 am - 8:05 pmKLU Klagenfurt-IAD Washington, D.C. Dulles Intl

14h 50m2 stops Vienna Intl Munich Franz Josef Strauss

$1,885Multiple Airlines

Mon, Dec 21 - Tue, Jan 5

6:10 pm - 10:30 amIAD Washington, D.C. Dulles Intl-KLU Klagenfurt

10h 20m1 stop Vienna Intl

11:15 am - 2:10 pmKLU Klagenfurt-IAD Washington, D.C. Dulles Intl

32h 55m1 stop Vienna Intl

$1,894Multiple Airlines

Tue, Dec 22 - Mon, Jan 4

Fly from

Route

Depart

Return

Price

Cheapest round-trip

New YorkKlagenfurt

JFK New York John F Kennedy Intl - KLU Klagenfurt

JFKKLU

New York John F Kennedy Intl

Tue 10/13

12:30 am-11:25 am

1 stop28h 55m

Klagenfurt

Sun 10/18

4:15 pm-10:30 pm

2 stops36h 15m

$879

AtlantaKlagenfurt

ATL Atlanta Hartsfield-Jackson - KLU Klagenfurt

ATLKLU

Atlanta Hartsfield-Jackson

Thu 11/26

12:55 pm-10:30 am

2 stops15h 35m

Klagenfurt

Mon 11/30

11:40 am-2:40 pm

2 stops33h 00m

$1,009

AtlantaKlagenfurt

ATL Atlanta Hartsfield-Jackson - KLU Klagenfurt

ATLKLU

Atlanta Hartsfield-Jackson

Thu 11/26

11:11 am-10:30 am

3 stops17h 19m

Klagenfurt

Mon 11/30

11:40 am-2:40 pm

2 stops33h 00m

$1,042

New YorkKlagenfurt

JFK New York John F Kennedy Intl - KLU Klagenfurt

JFKKLU

New York John F Kennedy Intl

Tue 10/13

12:30 am-11:25 am

1 stop28h 55m

Klagenfurt

Sun 10/18

3:05 pm-10:30 pm

1 stop13h 25m

$1,183

Washington, D.C.Klagenfurt

IAD Washington, D.C. Dulles Intl - KLU Klagenfurt

IADKLU

Washington, D.C. Dulles Intl

Tue 12/22

9:55 am-10:30 am

2 stops18h 35m

Klagenfurt

Mon 1/4

11:15 am-9:05 pm

2 stops39h 50m

$1,835

Washington, D.C.Klagenfurt

IAD Washington, D.C. Dulles Intl - KLU Klagenfurt

IADKLU

Washington, D.C. Dulles Intl

Tue 12/22

9:55 am-10:30 am

2 stops18h 35m

Klagenfurt

Mon 1/4

11:15 am-2:10 pm

1 stop32h 55m

$1,852

Washington, D.C.Klagenfurt

IAD Washington, D.C. Dulles Intl - KLU Klagenfurt

IADKLU

Washington, D.C. Dulles Intl

Tue 12/22

9:55 am-10:30 am

2 stops18h 35m

Klagenfurt

Tue 1/5

11:15 am-2:10 pm

1 stop32h 55m

$1,871

Quickest round-trip

Washington, D.C.Klagenfurt

IAD Washington, D.C. Dulles Intl - KLU Klagenfurt

IADKLU

Washington, D.C. Dulles Intl

Tue 12/22

9:55 am-10:30 am

2 stops18h 35m

Klagenfurt

Tue 1/5

11:15 am-8:05 pm

2 stops14h 50m

$1,885

Washington, D.C.Klagenfurt

IAD Washington, D.C. Dulles Intl - KLU Klagenfurt

IADKLU

Washington, D.C. Dulles Intl

Mon 12/21

10:09 pm-10:30 am

2 stops30h 21m

Klagenfurt

Tue 1/5

11:15 am-8:05 pm

2 stops14h 50m

$1,885

Washington, D.C.Klagenfurt

IAD Washington, D.C. Dulles Intl - KLU Klagenfurt

IADKLU

Washington, D.C. Dulles Intl

Tue 12/22

6:10 pm-10:30 am

1 stop10h 20m

Klagenfurt

Mon 1/4

11:15 am-2:10 pm

1 stop32h 55m

$1,894

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

Klagenfurt flights insights and trends

Explore insights for your Klagenfurt flight to craft the best travel plan

How long does it take to fly to Klagenfurt?

If you’re flying from a popular airport in United States, such as Los Angeles or Miami, and flying into Klagenfurt, then you can expect flight times to average 13h 15m and 19h, respectively.

Cheap Klagenfurt flight deals and tips

Summary info about Klagenfurt flight prices, duration and airlines

Best One-Way Price	$1,344
Best Round-Trip Price	$1,009
Fastest flight time	10h 20m

The best one-way flight price to Klagenfurt from United States in the last 5 days is $1,344 (New York John F Kennedy Intl to Klagenfurt).

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The best round-trip flight price to Klagenfurt from United States in the last 5 days is $1,009 (Atlanta Hartsfield-Jackson to Klagenfurt).

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The fastest flight to Klagenfurt from United States takes 10h 20m (New York John F Kennedy Intl to Klagenfurt).

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Frequently asked questions about flying to Klagenfurt

Is there an alternative airport near Klagenfurt?

Finding an alternative and possibly cheaper destination airport near Klagenfurt is possible. If you are planning a flight to Klagenfurt, consider booking flights to Klagenfurt Airport (2 mi from Klagenfurt city center).

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

Prices for flights to Klagenfurt Airport refresh daily.

How many operators does momondo search for flights to Klagenfurt Airport?

As of September 2026, there is 1 operator available to choose from for flights to Klagenfurt Airport.

How old do you have to be to fly to Klagenfurt Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Klagenfurt Airport.

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

The required travel and health documents for your Klagenfurt Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Klagenfurt Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Why use momondo?

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

Finding the right flight to Klagenfurt is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Klagenfurt quick and easy, saving you time and money.

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

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

How can momondo help me find flights to Klagenfurt?

Once you have performed a search for flights to Klagenfurt, momondo helps you find the right flight 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 to Klagenfurt right now. Can momondo alert me if prices change?

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