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.

$926 Cheap Flights to Klagenfurt in 2026

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Find the cheapest flights from the United States to Klagenfurt

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 am - 2:00 pm

SFO

KLU

20h 30m

2 stops

3:00 pm - 11:17 am

KLU

SFO

53h 17m

2 stops

$926Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

6:50 pm - 2:00 pm

SEA

KLU

34h 10m

2 stops

2:05 pm - 11:55 am

KLU

SEA

54h 50m

2 stops

$1,104Lufthansa

Sun, Aug 9 - Sun, Aug 16

10:19 pm - 6:00 pm

IAD

KLU

37h 41m

2 stops

2:05 pm - 1:35 pm

KLU

IAD

53h 30m

2 stops

$1,118Multiple Airlines

Sat, Aug 15 - Sun, Aug 23

9:45 am - 2:00 pm

IAD

KLU

22h 15m

2 stops

3:00 pm - 2:00 pm

KLU

IAD

29h 00m

1 stop

$1,132Multiple Airlines

Wed, Sep 30 - Mon, Oct 5

5:45 pm - 11:20 pm

IAD

KLU

23h 35m

1 stop

3:00 pm - 2:00 pm

KLU

IAD

29h 00m

1 stop

$1,143Austrian Airlines

Wed, Sep 30 - Mon, Oct 5

4:40 pm - 2:00 pm

MIA

KLU

15h 20m

2 stops

5:50 am - 2:40 pm

KLU

MIA

14h 50m

2 stops

$1,154Lufthansa

Sat, Sep 19 - Sat, Sep 26

10:19 pm - 6:00 pm

IAD

KLU

37h 41m

2 stops

2:05 pm - 2:35 pm

KLU

IAD

30h 30m

1 stop

$1,156Multiple Airlines

Sat, Aug 15 - Sun, Aug 23

5:25 pm - 1:25 pm

IAD

KLU

14h 00m

1 stop

11:10 am - 2:35 pm

KLU

IAD

33h 25m

1 stop

$1,199Austrian Airlines

Thu, Aug 6 - Thu, Aug 13

8:40 am - 2:00 pm

SFO

KLU

20h 20m

2 stops

5:45 am - 3:50 pm

KLU

SFO

43h 05m

2 stops

$1,246Air Canada

Fri, Dec 4 - Tue, Dec 8

12:55 pm - 2:00 pm

RSW

KLU

19h 05m

2 stops

5:45 am - 12:00 pm

KLU

RSW

36h 15m

2 stops

$1,247Air Canada

Sat, Nov 7 - Wed, Nov 11

Fly from

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoKlagenfurt

SFO - KLU

SFOKLU

San Francisco

Wed 9/9

8:30 am-2:00 pm

2 stops20h 30m

Klagenfurt

Wed 9/16

3:00 pm-11:17 am

2 stops53h 17m

$926

SeattleKlagenfurt

SEA - KLU

SEAKLU

Seattle/Tacoma Intl

Sun 8/9

6:50 pm-2:00 pm

2 stops34h 10m

Klagenfurt

Sun 8/16

2:05 pm-11:55 am

2 stops54h 50m

$1,104

Washington, D.C.Klagenfurt

IAD - KLU

IADKLU

Washington, D.C. Dulles Intl

Sat 8/15

10:19 pm-6:00 pm

2 stops37h 41m

Klagenfurt

Sun 8/23

2:05 pm-1:35 pm

2 stops53h 30m

$1,118

Washington, D.C.Klagenfurt

IAD - KLU

IADKLU

Washington, D.C. Dulles Intl

Wed 9/30

9:45 am-2:00 pm

2 stops22h 15m

Klagenfurt

Mon 10/5

3:00 pm-2:00 pm

1 stop29h 00m

$1,132

Washington, D.C.Klagenfurt

IAD - KLU

IADKLU

Washington, D.C. Dulles Intl

Wed 9/30

5:45 pm-11:20 pm

1 stop23h 35m

Klagenfurt

Mon 10/5

3:00 pm-2:00 pm

1 stop29h 00m

$1,143

Quickest round-trip

MiamiKlagenfurt

MIA - KLU

MIAKLU

Miami

Sat 9/19

4:40 pm-2:00 pm

2 stops15h 20m

Klagenfurt

Sat 9/26

5:50 am-2:40 pm

2 stops14h 50m

$1,154

Washington, D.C.Klagenfurt

IAD - KLU

IADKLU

Washington, D.C. Dulles Intl

Sat 8/15

10:19 pm-6:00 pm

2 stops37h 41m

Klagenfurt

Sun 8/23

2:05 pm-2:35 pm

1 stop30h 30m

$1,156

Washington, D.C.Klagenfurt

IAD - KLU

IADKLU

Washington, D.C. Dulles Intl

Thu 8/6

5:25 pm-1:25 pm

1 stop14h 00m

Klagenfurt

Thu 8/13

11:10 am-2:35 pm

1 stop33h 25m

$1,199

San FranciscoKlagenfurt

SFO - KLU

SFOKLU

San Francisco

Fri 12/4

8:40 am-2:00 pm

2 stops20h 20m

Klagenfurt

Tue 12/8

5:45 am-3:50 pm

2 stops43h 05m

$1,246

Fort MyersKlagenfurt

RSW - KLU

RSWKLU

Fort Myers SW Florida Intl

Sat 11/7

12:55 pm-2:00 pm

2 stops19h 05m

Klagenfurt

Wed 11/11

5:45 am-12:00 pm

2 stops36h 15m

$1,247

Flights are sorted by cheapest round-trip flights first.

Sorted 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 San Francisco, and flying into Klagenfurt, then you can expect flight times to average 13h 40m and 16h, respectively.

Cheap Klagenfurt flight deals and tips

Summary info about Klagenfurt flight prices, duration and airlines

Best Round-Trip Price	$926
Fastest flight time	13h 20m

The best round-trip flight price to Klagenfurt from United States in the last 5 days is $926 (San Francisco to Klagenfurt).

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The fastest flight to Klagenfurt from United States takes 13h 20m (Los Angeles 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 June 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.