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Cheap flights from Washington, D.C. to Košice from $372

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Košice departing on 6/10. 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

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
SWISS Logo
8:20 pm - 9:15 am
IAD
-
KSC
30h 55m
1 stop
SWISS Logo
2:50 pm - 4:45 pm
KSC
-
IAD
31h 55m
1 stop
$923SWISS
Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
9:45 am - 2:00 pm
IAD
-
KSC
22h 15m
2 stops
Multiple Airlines Logo
2:50 pm - 4:45 pm
KSC
-
IAD
31h 55m
1 stop
$945Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
Lufthansa Logo
10:20 pm - 11:20 pm
IAD
-
KSC
19h 00m
2 stops
Lufthansa Logo
2:45 pm - 7:25 pm
KSC
-
IAD
34h 40m
2 stops
$962Lufthansa
Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
9:45 am - 2:00 pm
IAD
-
KSC
22h 15m
2 stops
Multiple Airlines Logo
2:50 pm - 4:45 pm
KSC
-
IAD
31h 55m
1 stop
$970Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
SWISS Logo
8:20 pm - 9:15 am
IAD
-
KSC
30h 55m
1 stop
SWISS Logo
2:50 pm - 4:45 pm
KSC
-
IAD
31h 55m
1 stop
$973SWISS
Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
10:20 pm - 11:20 pm
IAD
-
KSC
19h 00m
2 stops
Multiple Airlines Logo
2:50 pm - 4:45 pm
KSC
-
IAD
31h 55m
1 stop
$977Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
9:45 am - 2:00 pm
IAD
-
KSC
22h 15m
2 stops
Multiple Airlines Logo
2:50 pm - 4:45 pm
KSC
-
IAD
31h 55m
1 stop
$995Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
Lufthansa Logo
10:20 pm - 11:20 pm
IAD
-
KSC
19h 00m
2 stops
Lufthansa Logo
2:45 pm - 1:35 pm
KSC
-
IAD
28h 50m
2 stops
$1,003Lufthansa
Wed, Aug 5 - Wed, Aug 12
LOT Logo
6:30 am - 5:05 pm
DCA
-
KSC
28h 35m
2 stops
LOT Logo
3:05 pm - 10:59 pm
KSC
-
DCA
37h 54m
2 stops
$1,436LOT
Wed, Aug 5 - Wed, Aug 12
LOT Logo
6:30 am - 5:05 pm
DCA
-
KSC
28h 35m
2 stops
LOT Logo
3:05 pm - 10:59 pm
KSC
-
DCA
37h 54m
2 stops
$1,443LOT
Wed, Aug 5 - Wed, Aug 12

Lufthansa flights from Washington, D.C. to Košice

Our best Lufthansa deals on Washington, D.C. to Košice flight tickets
Lufthansa
Aug 5
IAD10:20 pmWashington, D.C. Dulles Intl
19h 00m
2 stops
KSC11:20 pmKošice Barca
Aug 12
KSC2:45 pmKošice Barca
34h 40m
2 stops
IAD7:25 pmWashington, D.C. Dulles Intl
$962
Lufthansa
Aug 5
IAD10:20 pmWashington, D.C. Dulles Intl
19h 00m
2 stops
KSC11:20 pmKošice Barca
Aug 12
KSC2:45 pmKošice Barca
28h 50m
2 stops
IAD1:35 pmWashington, D.C. Dulles Intl
$1,003
Lufthansa
Aug 5
IAD10:20 pmWashington, D.C. Dulles Intl
19h 00m
2 stops
KSC11:20 pmKošice Barca
Aug 12
KSC2:45 pmKošice Barca
28h 50m
2 stops
IAD1:35 pmWashington, D.C. Dulles Intl
$1,011

SWISS flights from Washington, D.C. to Košice

Our best SWISS deals on Washington, D.C. to Košice flight tickets
SWISS
Aug 5
IAD8:20 pmWashington, D.C. Dulles Intl
30h 55m
1 stop
KSC9:15 amKošice Barca
Aug 12
KSC2:50 pmKošice Barca
31h 55m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$923
SWISS
Aug 5
IAD8:20 pmWashington, D.C. Dulles Intl
30h 55m
1 stop
KSC9:15 amKošice Barca
Aug 12
KSC2:50 pmKošice Barca
31h 55m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$973
SWISS
Apr 22
IAD8:20 pmWashington, D.C. Dulles Intl
30h 55m
1 stop
KSC9:15 amKošice Barca
Apr 29
KSC2:50 pmKošice Barca
30h 25m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl
$1,021

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Wed 8/5

8:20 pm-9:15 am

1 stop30h 55m

Košice Barca

Wed 8/12

2:50 pm-4:45 pm

1 stop31h 55m

$923

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Wed 8/5

9:45 am-2:00 pm

2 stops22h 15m

Košice Barca

Wed 8/12

2:50 pm-4:45 pm

1 stop31h 55m

$945

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Wed 8/5

10:20 pm-11:20 pm

2 stops19h 00m

Košice Barca

Wed 8/12

2:45 pm-7:25 pm

2 stops34h 40m

$962

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Wed 8/5

9:45 am-2:00 pm

2 stops22h 15m

Košice Barca

Wed 8/12

2:50 pm-4:45 pm

1 stop31h 55m

$970

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Wed 8/5

8:20 pm-9:15 am

1 stop30h 55m

Košice Barca

Wed 8/12

2:50 pm-4:45 pm

1 stop31h 55m

$973

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Wed 8/5

10:20 pm-11:20 pm

2 stops19h 00m

Košice Barca

Wed 8/12

2:50 pm-4:45 pm

1 stop31h 55m

$977

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Wed 8/5

9:45 am-2:00 pm

2 stops22h 15m

Košice Barca

Wed 8/12

2:50 pm-4:45 pm

1 stop31h 55m

$995
Quickest round-trip

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Wed 8/5

10:20 pm-11:20 pm

2 stops19h 00m

Košice Barca

Wed 8/12

2:45 pm-1:35 pm

2 stops28h 50m

$1,003

Washington, D.C.Košice

DCA - KSC

DCAKSC

Washington, D.C. Reagan-National

Wed 8/5

6:30 am-5:05 pm

2 stops28h 35m

Košice Barca

Wed 8/12

3:05 pm-10:59 pm

2 stops37h 54m

$1,436

Washington, D.C.Košice

DCA - KSC

DCAKSC

Washington, D.C. Reagan-National

Wed 8/5

6:30 am-5:05 pm

2 stops28h 35m

Košice Barca

Wed 8/12

3:05 pm-10:59 pm

2 stops37h 54m

$1,443

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Košice from

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

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

Can stopping save me money on Washington, D.C. to Košice flights?

You could potentially save up to 61% on your flight if you consider stops on a Washington, D.C. to Košice flight.

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

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

Cheap Washington, D.C. to Košice (WAS to KSC) flight deals and tips

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

Fastest flight time

14h 35m

Direct flights

None
The fastest flight from Washington, D.C. to Košice takes 14h 35m
There are no direct flights from Washington, D.C. to Košice. There are no popular flight routes from Washington, D.C. to Košice.
Search flight deals

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

    The straight-line distance from Washington, D.C. to Košice Barca is 4595.3 mi. In terms of flight time, this usually takes a little over 14h 35m.

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

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

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

  • What documentation or ID do you need to fly to Košice Barca Airport?

    The required travel and health documents for your Košice Barca 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 Košice Barca Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Košice?

Book flights to Košice if you plan to visit one of these locations
Prešov

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Košice. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Washington, D.C. to Košice 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 Košice?

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 Košice from Washington, D.C..

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

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

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