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Cheap flights from Washington, D.C. to Kos from $622

1 adult
1 adult, Economy, 0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:30 pm - 9:15 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
24h 45m2 stops Istanbul Athens Eleftherios V.
Multiple Airlines Logo
9:45 pm - 11:45 amKGS  Kos-IAD Washington, D.C. Dulles Intl
45h 00m2 stops Athens Eleftherios V. Istanbul
$965Multiple Airlines
Sun, Dec 6 - Sun, Dec 13
Multiple Airlines Logo
1:30 pm - 3:45 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
19h 15m2 stops Istanbul Athens Eleftherios V.
Multiple Airlines Logo
12:00 pm - 11:45 amKGS  Kos-IAD Washington, D.C. Dulles Intl
30h 45m2 stops Athens Eleftherios V. Istanbul
$994Multiple Airlines
Sat, Dec 5 - Sat, Dec 12
Multiple Airlines Logo
10:30 pm - 7:45 amIAD  Washington, D.C. Dulles Intl-KGS Kos
26h 15m3 stops Lisbon Humberto Delgado Milan Malpensa Athens Eleftherios V.
Multiple Airlines Logo
12:00 pm - 3:15 pmKGS  Kos-IAD Washington, D.C. Dulles Intl
34h 15m3 stops Athens Eleftherios V. Milan Malpensa Lisbon Humberto Delgado
$1,077Multiple Airlines
Sun, Dec 6 - Sun, Dec 13
Multiple Airlines Logo
5:25 pm - 7:45 amIAD  Washington, D.C. Dulles Intl-KGS Kos
31h 20m3 stops Lisbon Humberto Delgado London Heathrow Athens Eleftherios V.
Multiple Airlines Logo
5:15 pm - 8:35 pmKGS  Kos-IAD Washington, D.C. Dulles Intl
34h 20m3 stops Athens Eleftherios V. London Heathrow Lisbon Humberto Delgado
$1,133Multiple Airlines
Sat, Dec 5 - Sat, Dec 12
Multiple Airlines Logo
1:30 pm - 9:15 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
24h 45m2 stops Istanbul Athens Eleftherios V.
Multiple Airlines Logo
12:00 pm - 3:15 pmKGS  Kos-IAD Washington, D.C. Dulles Intl
34h 15m3 stops Athens Eleftherios V. Rome Fiumicino Lisbon Humberto Delgado
$1,168Multiple Airlines
Sun, Dec 6 - Sun, Dec 13
Multiple Airlines Logo
1:30 pm - 3:45 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
19h 15m2 stops Istanbul Athens Eleftherios V.
Multiple Airlines Logo
5:25 pm - 7:25 pmKGS  Kos-IAD Washington, D.C. Dulles Intl
33h 00m3 stops Rhodes Diagoras Athens Eleftherios V. Istanbul
$1,172Multiple Airlines
Sat, Dec 5 - Sat, Dec 12

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

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Route

Depart

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Price

Cheapest round-trip

Washington, D.C.Kos

IAD Washington, D.C. Dulles Intl - KGS Kos

IADKGS

Washington, D.C. Dulles Intl

Sun 12/6

1:30 pm-9:15 pm

2 stops24h 45m

Kos

Sun 12/13

9:45 pm-11:45 am

2 stops45h 00m

$965
Quickest round-trip

Washington, D.C.Kos

IAD Washington, D.C. Dulles Intl - KGS Kos

IADKGS

Washington, D.C. Dulles Intl

Sat 12/5

1:30 pm-3:45 pm

2 stops19h 15m

Kos

Sat 12/12

12:00 pm-11:45 am

2 stops30h 45m

$994

Washington, D.C.Kos

IAD Washington, D.C. Dulles Intl - KGS Kos

IADKGS

Washington, D.C. Dulles Intl

Sun 12/6

10:30 pm-7:45 am

3 stops26h 15m

Kos

Sun 12/13

12:00 pm-3:15 pm

3 stops34h 15m

$1,077

Washington, D.C.Kos

IAD Washington, D.C. Dulles Intl - KGS Kos

IADKGS

Washington, D.C. Dulles Intl

Sat 12/5

5:25 pm-7:45 am

3 stops31h 20m

Kos

Sat 12/12

5:15 pm-8:35 pm

3 stops34h 20m

$1,133

Washington, D.C.Kos

IAD Washington, D.C. Dulles Intl - KGS Kos

IADKGS

Washington, D.C. Dulles Intl

Sun 12/6

1:30 pm-9:15 pm

2 stops24h 45m

Kos

Sun 12/13

12:00 pm-3:15 pm

3 stops34h 15m

$1,168

Washington, D.C.Kos

IAD Washington, D.C. Dulles Intl - KGS Kos

IADKGS

Washington, D.C. Dulles Intl

Sat 12/5

1:30 pm-3:45 pm

2 stops19h 15m

Kos

Sat 12/12

5:25 pm-7:25 pm

3 stops33h 00m

$1,172
Cheapest one-way

Washington, D.C.Kos

IAD Washington, D.C. Dulles Intl - KGS Kos

IADKGS

Washington, D.C. Dulles Intl

Wed 12/30

10:30 pm-11:30 am

3 stops30h 00m

$622
Quickest one-way

Washington, D.C.Kos

IAD Washington, D.C. Dulles Intl - KGS Kos

IADKGS

Washington, D.C. Dulles Intl

Wed 12/30

1:30 pm-11:30 am

2 stops15h 00m

$708

Washington, D.C.Kos

IAD Washington, D.C. Dulles Intl - KGS Kos

IADKGS

Washington, D.C. Dulles Intl

Thu 12/31

4:30 pm-4:30 pm

2 stops17h 00m

$1,155

Washington, D.C.Kos

IAD Washington, D.C. Dulles Intl - KGS Kos

IADKGS

Washington, D.C. Dulles Intl

Tue 12/29

10:55 pm-9:15 pm

2 stops15h 20m

$1,333

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Kos from

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

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 Kos?

On average, it takes 21h 15m to fly from Washington, D.C. to Kos if you fly out of Washington, D.C. (the most popular airport in Washington, D.C.) and into Kos (the most popular airport in Kos). If you’re flying out of Baltimore and into Kos, then the flight time is around 34h 55m.

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

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

Cheap Washington, D.C. to Kos (WAS to KGS) flight deals and tips

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

Best Price Found

$622

Fastest flight time

17h 45m

Direct flights

None
The best one-way flight to Kos from Washington, D.C. in the past 72 hours is $622. The best round-trip flight deal from Washington, D.C. to Kos found on momondo in the last 72 hours is $965.
The fastest flight from Washington, D.C. to Kos takes 17h 45m
There are no direct flights from Washington, D.C. to Kos. There are no popular flight routes from Washington, D.C. to Kos.
Search flight deals

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

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

    A flight from Washington, D.C. to Kos will travel around 5324.1 mi. Typically, this will take 17h 45m by plane in normal conditions.

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

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

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

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

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

Traveling to a place near Kos?

Book flights to Kos if you plan to visit one of these locations
Marmari
Kardamena

Why use momondo?

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

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 Kos. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Kos from Washington, D.C. with this policy.

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

momondo helps you find the best flight between Washington, D.C. and Kos by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Washington, D.C. to Kos flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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