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Cheap flights from Klagenfurt to Washington, D.C. from $957

This is the cheapest round-trip 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 5/23. 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
0 bags

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Find the cheapest flights from Klagenfurt to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Austrian Airlines Logo
5:50 am - 3:30 pm
KLU
-
IAD
15h 40m
2 stops
Austrian Airlines Logo
5:40 pm - 2:00 pm
IAD
-
KLU
14h 20m
2 stops
$957Austrian Airlines
Sat, May 23 - Wed, May 27
Multiple Airlines Logo
5:50 am - 2:35 pm
KLU
-
IAD
14h 45m
1 stop
Multiple Airlines Logo
10:20 pm - 2:00 pm
IAD
-
KLU
33h 40m
2 stops
$993Multiple Airlines
Sat, May 23 - Wed, May 27
Multiple Airlines Logo
5:50 am - 2:35 pm
KLU
-
IAD
14h 45m
1 stop
Multiple Airlines Logo
5:25 pm - 2:00 pm
IAD
-
KLU
14h 35m
1 stop
$1,025Multiple Airlines
Sat, May 23 - Wed, May 27
Multiple Airlines Logo
11:10 am - 3:10 pm
KLU
-
IAD
34h 00m
3 stops
Multiple Airlines Logo
8:30 pm - 11:20 pm
IAD
-
KLU
20h 50m
3 stops
$1,559Multiple Airlines
Sat, May 23 - Wed, May 27
Lufthansa Logo
11:10 am - 7:25 pm
KLU
-
IAD
14h 15m
2 stops
Lufthansa Logo
10:15 pm - 2:00 pm
IAD
-
KLU
33h 45m
3 stops
$3,969Lufthansa
Sat, May 23 - Wed, May 27

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 May 12, 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 - IAD

KLUIAD

Klagenfurt

Sat 5/23

5:50 am-3:30 pm

2 stops15h 40m

Washington, D.C. Dulles Intl

Wed 5/27

5:40 pm-2:00 pm

2 stops14h 20m

$957

KlagenfurtWashington, D.C.

KLU - IAD

KLUIAD

Klagenfurt

Sat 5/23

5:50 am-2:35 pm

1 stop14h 45m

Washington, D.C. Dulles Intl

Wed 5/27

10:20 pm-2:00 pm

2 stops33h 40m

$993
Quickest round-trip

KlagenfurtWashington, D.C.

KLU - IAD

KLUIAD

Klagenfurt

Sat 5/23

5:50 am-2:35 pm

1 stop14h 45m

Washington, D.C. Dulles Intl

Wed 5/27

5:25 pm-2:00 pm

1 stop14h 35m

$1,025

KlagenfurtWashington, D.C.

KLU - IAD

KLUIAD

Klagenfurt

Sat 5/23

11:10 am-3:10 pm

3 stops34h 00m

Washington, D.C. Dulles Intl

Wed 5/27

8:30 pm-11:20 pm

3 stops20h 50m

$1,559

KlagenfurtWashington, D.C.

KLU - IAD

KLUIAD

Klagenfurt

Sat 5/23

11:10 am-7:25 pm

2 stops14h 15m

Washington, D.C. Dulles Intl

Wed 5/27

10:15 pm-2:00 pm

3 stops33h 45m

$3,969

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

28h 35m

Direct flights

None
The fastest flight from Klagenfurt to Washington, D.C. takes 28h 35m
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.. 28h 35m 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.

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

  • How do I get Price Alerts for flights from Klagenfurt to Washington, D.C.?

    Price Alerts will notify you by email when the price for flights to Washington, D.C. from Klagenfurt 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 Klagenfurt to Washington, D.C. 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?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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
Gettysburg
Arlington
Waldorf
Woodbridge
Laurel
Gaithersburg
Colonial Beach
Fredericksburg
Silver Spring
Towson
Rockville
Manassas
Linthicum Heights
Tysons
Bethesda
Springfield
Fairfax
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