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Cheap flights from Klagenfurt to Washington, D.C. from $488

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Klagenfurt to Washington, D.C. departing on 11/2. 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 Klagenfurt to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
11:15 am - 8:05 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
14h 50m2 stops Vienna Intl Frankfurt am Main
Lufthansa Logo
5:30 pm - 2:00 pmIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
14h 30m2 stops Munich Franz Josef Strauss Vienna Intl
$920Lufthansa
Fri, Jan 15 - Mon, Jun 28
Lufthansa Logo
11:40 am - 8:05 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
14h 25m2 stops Vienna Intl Frankfurt am Main
Lufthansa Logo
6:00 pm - 10:30 amIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
34h 30m2 stops Frankfurt am Main Vienna Intl
$921Lufthansa
Thu, Dec 17 - Sun, Jan 17
Multiple Airlines Logo
11:40 am - 3:55 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
34h 15m2 stops Vienna Intl Frankfurt am Main
Multiple Airlines Logo
6:10 pm - 10:30 amIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
10h 20m1 stop Vienna Intl
$924Multiple Airlines
Thu, Dec 17 - Sun, Jan 17
Austrian Airlines Logo
11:40 am - 2:10 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
32h 30m1 stop Vienna Intl
Austrian Airlines Logo
6:10 pm - 10:30 amIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
10h 20m1 stop Vienna Intl
$926Austrian Airlines
Thu, Dec 17 - Sun, Jan 17
Austrian Airlines Logo
11:40 am - 2:10 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
32h 30m1 stop Vienna Intl
Austrian Airlines Logo
6:10 pm - 10:30 amIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
10h 20m1 stop Vienna Intl
$957Austrian Airlines
Wed, Dec 16 - Mon, Jan 18
Multiple Airlines Logo
11:40 am - 8:05 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
14h 25m2 stops Vienna Intl Frankfurt am Main
Multiple Airlines Logo
6:10 pm - 10:30 amIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
10h 20m1 stop Vienna Intl
$969Multiple Airlines
Wed, Dec 16 - Mon, Jan 18
Multiple Airlines Logo
11:40 am - 8:05 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
14h 25m2 stops Vienna Intl Frankfurt am Main
Multiple Airlines Logo
1:20 pm - 10:30 amIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
15h 10m2 stops Montreal Pierre Elliott Trudeau Intl Vienna Intl
$970Multiple Airlines
Wed, Dec 16 - Mon, Jan 18
Lufthansa Logo
11:40 am - 8:05 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
14h 25m2 stops Vienna Intl Munich Franz Josef Strauss
Lufthansa Logo
10:10 pm - 10:30 amIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
30h 20m2 stops Frankfurt am Main Vienna Intl
$981Lufthansa
Wed, Dec 16 - Sat, Jan 16
Multiple Airlines Logo
11:15 am - 8:05 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
14h 50m2 stops Vienna Intl Frankfurt am Main
Multiple Airlines Logo
1:20 pm - 2:00 pmIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
18h 40m3 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main Vienna Intl
$984Multiple Airlines
Fri, Jan 15 - Mon, Jun 28
Air Canada Logo
5:50 am - 8:25 pmKLU  Klagenfurt-IAD Washington, D.C. Dulles Intl
20h 35m2 stops Vienna Intl Toronto Pearson Intl
Air Canada Logo
9:45 am - 2:00 pmIAD  Washington, D.C. Dulles Intl-KLU Klagenfurt
22h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vienna Intl
$996Air Canada
Thu, Oct 8 - Mon, Oct 12

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Air Canada flights from Klagenfurt to Washington, D.C.

Our best Air Canada deals on Klagenfurt to Washington, D.C. flight tickets
Air Canada
Oct 8
KLU5:50 amKlagenfurt
20h 35m
2 stops
IAD8:25 pmWashington, D.C. Dulles Intl
Oct 12
IAD9:45 amWashington, D.C. Dulles Intl
22h 15m
2 stops
KLU2:00 pmKlagenfurt
$996
Air Canada
Oct 8
KLU5:50 amKlagenfurt
38h 32m
2 stops
IAD2:22 pmWashington, D.C. Dulles Intl
Oct 12
IAD9:55 amWashington, D.C. Dulles Intl
22h 05m
2 stops
KLU2:00 pmKlagenfurt
$1,055

Lufthansa flights from Klagenfurt to Washington, D.C.

Our best Lufthansa deals on Klagenfurt to Washington, D.C. flight tickets
Lufthansa
Jan 15
KLU11:15 amKlagenfurt
14h 50m
2 stops
IAD8:05 pmWashington, D.C. Dulles Intl
Jun 28
IAD5:30 pmWashington, D.C. Dulles Intl
14h 30m
2 stops
KLU2:00 pmKlagenfurt
$920
Lufthansa
Dec 17
KLU11:40 amKlagenfurt
14h 25m
2 stops
IAD8:05 pmWashington, D.C. Dulles Intl
Jan 17
IAD6:00 pmWashington, D.C. Dulles Intl
34h 30m
2 stops
KLU10:30 amKlagenfurt
$921
Lufthansa
Dec 16
KLU11:40 amKlagenfurt
14h 25m
2 stops
IAD8:05 pmWashington, D.C. Dulles Intl
Jan 16
IAD10:10 pmWashington, D.C. Dulles Intl
30h 20m
2 stops
KLU10:30 amKlagenfurt
$981

momondo Fare Finder

 
Customize your flight search to find flights from Klagenfurt to Washington, D.C. 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 13, 2026.
Use the filters below to find and compare flights from Klagenfurt to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KlagenfurtWashington, D.C.

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

KLUIAD

Klagenfurt

Fri 1/15

11:15 am-8:05 pm

2 stops14h 50m

Washington, D.C. Dulles Intl

Mon 6/28

5:30 pm-2:00 pm

2 stops14h 30m

$920

KlagenfurtWashington, D.C.

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

KLUIAD

Klagenfurt

Thu 12/17

11:40 am-8:05 pm

2 stops14h 25m

Washington, D.C. Dulles Intl

Sun 1/17

6:00 pm-10:30 am

2 stops34h 30m

$921

KlagenfurtWashington, D.C.

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

KLUIAD

Klagenfurt

Thu 12/17

11:40 am-3:55 pm

2 stops34h 15m

Washington, D.C. Dulles Intl

Sun 1/17

6:10 pm-10:30 am

1 stop10h 20m

$924

KlagenfurtWashington, D.C.

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

KLUIAD

Klagenfurt

Thu 12/17

11:40 am-2:10 pm

1 stop32h 30m

Washington, D.C. Dulles Intl

Sun 1/17

6:10 pm-10:30 am

1 stop10h 20m

$926

KlagenfurtWashington, D.C.

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

KLUIAD

Klagenfurt

Wed 12/16

11:40 am-2:10 pm

1 stop32h 30m

Washington, D.C. Dulles Intl

Mon 1/18

6:10 pm-10:30 am

1 stop10h 20m

$957
Quickest round-trip

KlagenfurtWashington, D.C.

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

KLUIAD

Klagenfurt

Wed 12/16

11:40 am-8:05 pm

2 stops14h 25m

Washington, D.C. Dulles Intl

Mon 1/18

6:10 pm-10:30 am

1 stop10h 20m

$969

KlagenfurtWashington, D.C.

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

KLUIAD

Klagenfurt

Wed 12/16

11:40 am-8:05 pm

2 stops14h 25m

Washington, D.C. Dulles Intl

Mon 1/18

1:20 pm-10:30 am

2 stops15h 10m

$970

KlagenfurtWashington, D.C.

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

KLUIAD

Klagenfurt

Wed 12/16

11:40 am-8:05 pm

2 stops14h 25m

Washington, D.C. Dulles Intl

Sat 1/16

10:10 pm-10:30 am

2 stops30h 20m

$981

KlagenfurtWashington, D.C.

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

KLUIAD

Klagenfurt

Fri 1/15

11:15 am-8:05 pm

2 stops14h 50m

Washington, D.C. Dulles Intl

Mon 6/28

1:20 pm-2:00 pm

3 stops18h 40m

$984

KlagenfurtWashington, D.C.

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

KLUIAD

Klagenfurt

Thu 10/8

5:50 am-8:25 pm

2 stops20h 35m

Washington, D.C. Dulles Intl

Mon 10/12

9:45 am-2:00 pm

2 stops22h 15m

$996

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Klagenfurt to Washington, D.C.

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 Klagenfurt to Washington, D.C.?

Austrian Airlines is the most popular carrier operating from Klagenfurt to Washington, D.C.

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

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

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

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

Fastest flight time

30h 00m

Direct flights

None
The fastest flight from Klagenfurt to Washington, D.C. takes 30h 00m
There are no direct flights from Klagenfurt to Washington, D.C.. There are no popular flight routes from Klagenfurt to Washington, D.C..
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Frequently asked questions about flying from Klagenfurt to Washington, D.C.

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

    There are 4394.0 mi between Klagenfurt and Washington, D.C.. 30h 00m is a normal flight duration for this route.

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

    Prices for flights from Klagenfurt Airport to Washington, D.C. are updated daily.

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

    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 from Klagenfurt Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents you'll need for your trip to Washington, D.C. 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 Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Linthicum Heights
Rockville
Silver Spring
Towson
Colonial Beach
Springfield
Fairfax
Tysons
Edgewood
Glen Burnie
College Park

Why use momondo?

Why should I use momondo to find a flight deal from Klagenfurt to Washington, D.C.?

It is quick and easy to find Klagenfurt to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from Klagenfurt to Washington, D.C. with flexible booking policies on momondo?

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Klagenfurt.

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

Of course. momondo tracks the price of Klagenfurt to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport