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Cheap flights from Washington, D.C. to Klagenfurt from $1,033

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Klagenfurt departing on 10/30. 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 Washington, D.C. to Klagenfurt

Cheap round-trip flights

Enter your travel dates to find the best prices.
Austrian Airlines Logo
7:10 pm - 2:00 pmIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
13h 50m1 stop Vienna Intl
Austrian Airlines Logo
2:50 pm - 2:10 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
29h 20m1 stop Vienna Intl
$1,033Austrian Airlines
Fri, Oct 30 - Mon, Nov 2
Multiple Airlines Logo
7:10 pm - 2:00 pmIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
13h 50m1 stop Vienna Intl
Multiple Airlines Logo
2:50 pm - 9:22 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
36h 32m2 stops Vienna Intl Toronto Pearson Intl
$1,041Multiple Airlines
Fri, Oct 30 - Mon, Nov 2
Multiple Airlines Logo
9:55 am - 2:00 pmIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
23h 05m2 stops Toronto Pearson Intl Vienna Intl
Multiple Airlines Logo
2:50 pm - 2:10 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
29h 20m1 stop Vienna Intl
$1,047Multiple Airlines
Wed, Oct 28 - Mon, Nov 2
Multiple Airlines Logo
4:30 pm - 2:00 pmIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
16h 30m2 stops Toronto Pearson Intl Vienna Intl
Multiple Airlines Logo
2:50 pm - 9:22 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
36h 32m2 stops Vienna Intl Toronto Pearson Intl
$1,049Multiple Airlines
Fri, Oct 30 - Mon, Nov 2
Multiple Airlines Logo
6:59 am - 2:00 pmDCA  Washington, D.C. Reagan-National-KLU Klagenfurt
26h 01m2 stops Toronto Pearson Intl Vienna Intl
Multiple Airlines Logo
2:50 pm - 6:18 pmKLU  Klagenfurt-DCA Washington, D.C. Reagan-National
33h 28m2 stops Vienna Intl Toronto Pearson Intl
$1,049Multiple Airlines
Fri, Oct 30 - Mon, Nov 2
Multiple Airlines Logo
4:30 pm - 2:00 pmIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
16h 30m2 stops Toronto Pearson Intl Vienna Intl
Multiple Airlines Logo
2:50 pm - 2:10 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
29h 20m1 stop Vienna Intl
$1,063Multiple Airlines
Wed, Oct 28 - Mon, Nov 2
Multiple Airlines Logo
4:30 pm - 10:30 amIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
13h 00m2 stops Toronto Pearson Intl Vienna Intl
Multiple Airlines Logo
2:50 pm - 2:10 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
29h 20m1 stop Vienna Intl
$1,064Multiple Airlines
Wed, Oct 28 - Mon, Nov 2
Austrian Airlines Logo
7:10 pm - 2:00 pmIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
13h 50m1 stop Vienna Intl
Austrian Airlines Logo
2:50 pm - 2:10 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
29h 20m1 stop Vienna Intl
$1,068Austrian Airlines
Wed, Oct 28 - Mon, Nov 2
Austrian Airlines Logo
7:10 pm - 2:00 pmIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
13h 50m1 stop Vienna Intl
Austrian Airlines Logo
2:50 pm - 2:10 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
29h 20m1 stop Vienna Intl
$1,074Austrian Airlines
Wed, Oct 28 - Mon, Nov 2
Austrian Airlines Logo
7:10 pm - 10:30 amIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
10h 20m1 stop Vienna Intl
Austrian Airlines Logo
11:40 am - 2:10 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
32h 30m1 stop Vienna Intl
$1,075Austrian Airlines
Wed, Oct 28 - Mon, Nov 2

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Austrian Airlines flights from Washington, D.C. to Klagenfurt

Our best Austrian Airlines deals on Washington, D.C. to Klagenfurt flight tickets
Austrian Airlines
Oct 30
IAD7:10 pmWashington, D.C. Dulles Intl
13h 50m
1 stop
KLU2:00 pmKlagenfurt
Nov 2
KLU2:50 pmKlagenfurt
29h 20m
1 stop
IAD2:10 pmWashington, D.C. Dulles Intl
$1,033
Austrian Airlines
Oct 28
IAD7:10 pmWashington, D.C. Dulles Intl
13h 50m
1 stop
KLU2:00 pmKlagenfurt
Nov 2
KLU2:50 pmKlagenfurt
29h 20m
1 stop
IAD2:10 pmWashington, D.C. Dulles Intl
$1,068
Austrian Airlines
Oct 28
IAD7:10 pmWashington, D.C. Dulles Intl
13h 50m
1 stop
KLU2:00 pmKlagenfurt
Nov 2
KLU2:50 pmKlagenfurt
29h 20m
1 stop
IAD2:10 pmWashington, D.C. Dulles Intl
$1,074

Lufthansa flights from Washington, D.C. to Klagenfurt

Our best Lufthansa deals on Washington, D.C. to Klagenfurt flight tickets
Lufthansa
Oct 28
IAD11:55 pmWashington, D.C. Dulles Intl
33h 05m
2 stops
KLU2:00 pmKlagenfurt
Nov 2
KLU2:50 pmKlagenfurt
31h 05m
2 stops
IAD3:55 pmWashington, D.C. Dulles Intl
$1,085
Lufthansa
Oct 28
IAD11:55 pmWashington, D.C. Dulles Intl
18h 30m
2 stops
KLU11:25 pmKlagenfurt
Nov 2
KLU2:50 pmKlagenfurt
31h 05m
2 stops
IAD3:55 pmWashington, D.C. Dulles Intl
$1,087

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 5, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Klagenfurt that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Klagenfurt

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

IADKLU

Washington, D.C. Dulles Intl

Fri 10/30

7:10 pm-2:00 pm

1 stop13h 50m

Klagenfurt

Mon 11/2

2:50 pm-2:10 pm

1 stop29h 20m

$1,033

Washington, D.C.Klagenfurt

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

IADKLU

Washington, D.C. Dulles Intl

Fri 10/30

7:10 pm-2:00 pm

1 stop13h 50m

Klagenfurt

Mon 11/2

2:50 pm-9:22 pm

2 stops36h 32m

$1,041

Washington, D.C.Klagenfurt

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

IADKLU

Washington, D.C. Dulles Intl

Wed 10/28

9:55 am-2:00 pm

2 stops23h 05m

Klagenfurt

Mon 11/2

2:50 pm-2:10 pm

1 stop29h 20m

$1,047

Washington, D.C.Klagenfurt

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

IADKLU

Washington, D.C. Dulles Intl

Fri 10/30

4:30 pm-2:00 pm

2 stops16h 30m

Klagenfurt

Mon 11/2

2:50 pm-9:22 pm

2 stops36h 32m

$1,049

Washington, D.C.Klagenfurt

DCA Washington, D.C. Reagan-National - KLU Klagenfurt

DCAKLU

Washington, D.C. Reagan-National

Fri 10/30

6:59 am-2:00 pm

2 stops26h 01m

Klagenfurt

Mon 11/2

2:50 pm-6:18 pm

2 stops33h 28m

$1,049

Washington, D.C.Klagenfurt

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

IADKLU

Washington, D.C. Dulles Intl

Wed 10/28

4:30 pm-2:00 pm

2 stops16h 30m

Klagenfurt

Mon 11/2

2:50 pm-2:10 pm

1 stop29h 20m

$1,063
Quickest round-trip

Washington, D.C.Klagenfurt

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

IADKLU

Washington, D.C. Dulles Intl

Wed 10/28

4:30 pm-10:30 am

2 stops13h 00m

Klagenfurt

Mon 11/2

2:50 pm-2:10 pm

1 stop29h 20m

$1,064

Washington, D.C.Klagenfurt

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

IADKLU

Washington, D.C. Dulles Intl

Wed 10/28

7:10 pm-2:00 pm

1 stop13h 50m

Klagenfurt

Mon 11/2

2:50 pm-2:10 pm

1 stop29h 20m

$1,068

Washington, D.C.Klagenfurt

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

IADKLU

Washington, D.C. Dulles Intl

Wed 10/28

7:10 pm-2:00 pm

1 stop13h 50m

Klagenfurt

Mon 11/2

2:50 pm-2:10 pm

1 stop29h 20m

$1,074

Washington, D.C.Klagenfurt

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

IADKLU

Washington, D.C. Dulles Intl

Wed 10/28

7:10 pm-10:30 am

1 stop10h 20m

Klagenfurt

Mon 11/2

11:40 am-2:10 pm

1 stop32h 30m

$1,075

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 Washington, D.C. 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

How long does it take to fly to Klagenfurt?

If you’re flying from a popular airport in Washington, D.C., such as Baltimore or Washington, D.C., and flying into Klagenfurt, then you can expect flight times to average 18h 25m and 22h 08m, respectively.

When to book flights from Washington, D.C. to Klagenfurt

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

Cheap Washington, D.C. to Klagenfurt (WAS to KLU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Klagenfurt

Fastest flight time

13h 00m

Direct flights

None
The fastest flight from Washington, D.C. to Klagenfurt takes 13h 00m
There are no direct flights from Washington, D.C. to Klagenfurt. There are no popular flight routes from Washington, D.C. to Klagenfurt.
Search flight deals

Frequently asked questions about flying from Washington, D.C. to Klagenfurt

  • How far is Washington, D.C. to Klagenfurt by plane?

    The straight-line distance from Washington, D.C. to Klagenfurt is 4394.0 mi. By plane, this route typically takes 13h 00m.

  • When did momondo last update prices for flights from Washington, D.C. to Klagenfurt Airport?

    Prices for flights from Washington, D.C. to Klagenfurt Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. 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 Washington, D.C. 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.

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 Washington, D.C. to Klagenfurt?

Finding the right flight to Klagenfurt from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that 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 from Washington, D.C. to Klagenfurt with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Klagenfurt on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Klagenfurt?

Once all potential Washington, D.C. 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 Washington, D.C. to Klagenfurt right now. Can momondo alert me if prices change?

Price alerts on flights to Klagenfurt from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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