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Cheap flights from Washington, D.C. to Košice from $929

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 Košice departing on 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 - 6:55 pm
IAD
-
KSC
16h 35m
1 stop
SWISS Logo
10:00 am - 4:45 pm
KSC
-
IAD
12h 45m
1 stop
$929SWISS
Sun, Aug 9 - Fri, Aug 21
Multiple Airlines Logo
8:20 pm - 2:05 pm
IAD
-
KSC
11h 45m
1 stop
Multiple Airlines Logo
7:15 pm - 7:01 pm
KSC
-
IAD
29h 46m
2 stops
$932Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
12:43 pm - 2:05 pm
IAD
-
KSC
19h 22m
2 stops
Multiple Airlines Logo
7:15 pm - 7:01 pm
KSC
-
IAD
29h 46m
2 stops
$941Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
SWISS Logo
8:20 pm - 6:25 pm
IAD
-
KSC
16h 05m
1 stop
SWISS Logo
7:15 pm - 4:45 pm
KSC
-
IAD
27h 30m
1 stop
$951SWISS
Mon, Aug 10 - Tue, Aug 18
Austrian Airlines Logo
5:25 pm - 2:00 pm
IAD
-
KSC
14h 35m
1 stop
Austrian Airlines Logo
5:25 am - 2:35 pm
KSC
-
IAD
15h 10m
1 stop
$960Austrian Airlines
Sun, Aug 9 - Thu, Aug 20
Austrian Airlines Logo
5:42 pm - 2:00 pm
IAD
-
KSC
38h 18m
2 stops
Austrian Airlines Logo
2:45 pm - 2:35 pm
KSC
-
IAD
29h 50m
1 stop
$976Austrian Airlines
Sat, Aug 8 - Wed, Aug 19
Lufthansa Logo
10:20 pm - 11:20 pm
IAD
-
KSC
19h 00m
2 stops
Lufthansa Logo
5:25 am - 4:05 pm
KSC
-
IAD
16h 40m
2 stops
$985Lufthansa
Mon, Aug 10 - Fri, Aug 21
Lufthansa Logo
10:20 pm - 11:20 pm
IAD
-
KSC
19h 00m
2 stops
Lufthansa Logo
5:25 am - 1:35 pm
KSC
-
IAD
14h 10m
2 stops
$1,035Lufthansa
Sat, Aug 8 - Thu, Aug 20
LOT Logo
6:20 am - 11:55 am
DCA
-
KSC
23h 35m
2 stops
LOT Logo
3:05 pm - 10:59 pm
KSC
-
DCA
37h 54m
2 stops
$1,246LOT
Sun, Sep 6 - Sun, Sep 13
LOT Logo
6:20 am - 11:55 am
DCA
-
KSC
23h 35m
2 stops
LOT Logo
3:05 pm - 10:59 pm
KSC
-
DCA
37h 54m
2 stops
$1,251LOT
Sun, Sep 6 - Sun, Sep 13

SWISS flights from Washington, D.C. to Košice

Our best SWISS deals on Washington, D.C. to Košice flight tickets
SWISS
Aug 9
IAD8:20 pmWashington, D.C. Dulles Intl
16h 35m
1 stop
KSC6:55 pmKošice Barca
Aug 21
KSC10:00 amKošice Barca
12h 45m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$929
SWISS
Aug 10
IAD8:20 pmWashington, D.C. Dulles Intl
16h 05m
1 stop
KSC6:25 pmKošice Barca
Aug 18
KSC7:15 pmKošice Barca
27h 30m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$951
SWISS
Aug 9
IAD8:20 pmWashington, D.C. Dulles Intl
16h 35m
1 stop
KSC6:55 pmKošice Barca
Aug 17
KSC7:40 pmKošice Barca
27h 05m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
$1,074

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

Our best Austrian Airlines deals on Washington, D.C. to Košice flight tickets
Austrian Airlines
Aug 9
IAD5:25 pmWashington, D.C. Dulles Intl
14h 35m
1 stop
KSC2:00 pmKošice Barca
Aug 20
KSC5:25 amKošice Barca
15h 10m
1 stop
IAD2:35 pmWashington, D.C. Dulles Intl
$960
Austrian Airlines
Aug 8
IAD5:42 pmWashington, D.C. Dulles Intl
38h 18m
2 stops
KSC2:00 pmKošice Barca
Aug 19
KSC2:45 pmKošice Barca
29h 50m
1 stop
IAD2:35 pmWashington, D.C. Dulles Intl
$976
Austrian Airlines
Aug 8
IAD5:25 pmWashington, D.C. Dulles Intl
23h 55m
1 stop
KSC11:20 pmKošice Barca
Aug 18
KSC2:45 pmKošice Barca
29h 50m
1 stop
IAD2:35 pmWashington, D.C. Dulles Intl
$1,010

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 May 11, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Košice that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Sun 8/9

8:20 pm-6:55 pm

1 stop16h 35m

Košice Barca

Fri 8/21

10:00 am-4:45 pm

1 stop12h 45m

$929

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Tue 8/11

8:20 pm-2:05 pm

1 stop11h 45m

Košice Barca

Tue 8/18

7:15 pm-7:01 pm

2 stops29h 46m

$932

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Tue 8/11

12:43 pm-2:05 pm

2 stops19h 22m

Košice Barca

Tue 8/18

7:15 pm-7:01 pm

2 stops29h 46m

$941

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Mon 8/10

8:20 pm-6:25 pm

1 stop16h 05m

Košice Barca

Tue 8/18

7:15 pm-4:45 pm

1 stop27h 30m

$951

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Sun 8/9

5:25 pm-2:00 pm

1 stop14h 35m

Košice Barca

Thu 8/20

5:25 am-2:35 pm

1 stop15h 10m

$960

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Sat 8/8

5:42 pm-2:00 pm

2 stops38h 18m

Košice Barca

Wed 8/19

2:45 pm-2:35 pm

1 stop29h 50m

$976

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Mon 8/10

10:20 pm-11:20 pm

2 stops19h 00m

Košice Barca

Fri 8/21

5:25 am-4:05 pm

2 stops16h 40m

$985

Washington, D.C.Košice

IAD - KSC

IADKSC

Washington, D.C. Dulles Intl

Sat 8/8

10:20 pm-11:20 pm

2 stops19h 00m

Košice Barca

Thu 8/20

5:25 am-1:35 pm

2 stops14h 10m

$1,035

Washington, D.C.Košice

DCA - KSC

DCAKSC

Washington, D.C. Reagan-National

Sun 9/6

6:20 am-11:55 am

2 stops23h 35m

Košice Barca

Sun 9/13

3:05 pm-10:59 pm

2 stops37h 54m

$1,246

Washington, D.C.Košice

DCA - KSC

DCAKSC

Washington, D.C. Reagan-National

Sun 9/6

6:20 am-11:55 am

2 stops23h 35m

Košice Barca

Sun 9/13

3:05 pm-10:59 pm

2 stops37h 54m

$1,251

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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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

11h 45m

Direct flights

None
The fastest flight from Washington, D.C. to Košice takes 11h 45m
There are no direct flights from Washington, D.C. to Košice. There are no popular flight routes from Washington, D.C. to Košice.
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Frequently asked questions about flying from Washington, D.C. to Košice

  • 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 11h 45m.

  • 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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