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Cheap flights from Washington, D.C. to Kos from $354

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
5:05 pm - 7:35 amIAD  Washington, D.C. Dulles Intl-KGS Kos
31h 30m3 stops Lisbon Humberto Delgado Milan Malpensa Athens Eleftherios V.
Multiple Airlines Logo
6:05 pm - 8:35 pmKGS  Kos-IAD Washington, D.C. Dulles Intl
33h 30m3 stops Athens Eleftherios V. Milan Malpensa Lisbon Humberto Delgado
$1,105Multiple Airlines
Fri, Oct 16 - Thu, Oct 22
Multiple Airlines Logo
1:15 pm - 9:55 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
25h 40m2 stops Istanbul Athens Eleftherios V.
Multiple Airlines Logo
8:35 am - 11:30 amKGS  Kos-IAD Washington, D.C. Dulles Intl
33h 55m2 stops Athens Eleftherios V. Istanbul
$1,116Multiple Airlines
Fri, Oct 16 - Thu, Oct 22
Multiple Airlines Logo
9:55 am - 3:45 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
22h 50m2 stops Toronto Pearson Intl Athens Eleftherios V.
Multiple Airlines Logo
6:05 pm - 7:00 pmKGS  Kos-IAD Washington, D.C. Dulles Intl
31h 55m3 stops Athens Eleftherios V. Milan Malpensa Casablanca Mohamed V
$1,201Multiple Airlines
Fri, Oct 16 - Thu, Oct 22
Multiple Airlines Logo
10:20 pm - 7:45 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
14h 25m1 stop Munich Franz Josef Strauss
Multiple Airlines Logo
11:00 am - 4:45 pmKGS  Kos-IAD Washington, D.C. Dulles Intl
36h 45m1 stop Zurich
$1,364Multiple Airlines
Fri, Oct 16 - Thu, Oct 22
SWISS Logo
8:20 pm - 3:10 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
11h 50m1 stop Zurich
SWISS Logo
11:00 am - 4:45 pmKGS  Kos-IAD Washington, D.C. Dulles Intl
36h 45m1 stop Zurich
$1,366SWISS
Thu, Oct 15 - Thu, Oct 22
Multiple Airlines Logo
3:25 pm - 7:45 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
21h 20m2 stops Frankfurt am Main Munich Franz Josef Strauss
Multiple Airlines Logo
11:00 am - 4:45 pmKGS  Kos-IAD Washington, D.C. Dulles Intl
36h 45m1 stop Zurich
$1,400Multiple Airlines
Fri, Oct 16 - Thu, Oct 22
Emirates Logo
10:55 am - 5:35 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
23h 40m2 stops Dubai Intl Athens Eleftherios V.
Emirates Logo
6:05 pm - 8:40 amKGS  Kos-IAD Washington, D.C. Dulles Intl
45h 35m2 stops Athens Eleftherios V. Dubai Intl
$1,818Emirates
Sun, Oct 18 - Wed, Oct 21
Emirates Logo
10:55 am - 5:35 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
23h 40m2 stops Dubai Intl Athens Eleftherios V.
Emirates Logo
6:05 pm - 8:40 amKGS  Kos-IAD Washington, D.C. Dulles Intl
45h 35m2 stops Athens Eleftherios V. Dubai Intl
$1,819Emirates
Sun, Oct 18 - Wed, Oct 21
Multiple Airlines Logo
8:35 pm - 1:15 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
33h 40m2 stops Madrid Barajas London Gatwick
Multiple Airlines Logo
9:40 pm - 8:44 amKGS  Kos-IAD Washington, D.C. Dulles Intl
42h 04m3 stops London Gatwick Tampa Charlotte Douglas
$1,988Multiple Airlines
Thu, Oct 15 - Thu, Oct 22
Multiple Airlines Logo
5:45 pm - 8:50 pmIAD  Washington, D.C. Dulles Intl-KGS Kos
20h 05m1 stop Vienna Intl
Multiple Airlines Logo
8:35 am - 9:45 amKGS  Kos-IAD Washington, D.C. Dulles Intl
32h 10m2 stops Athens Eleftherios V. Abu Dhabi Zayed Intl
$2,849Multiple Airlines
Thu, Oct 15 - Thu, Oct 22

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Emirates flights from Washington, D.C. to Kos

Our best Emirates deals on Washington, D.C. to Kos flight tickets
Emirates
Oct 18
IAD10:55 amWashington, D.C. Dulles Intl
23h 40m
2 stops
KGS5:35 pmKos
Oct 21
KGS6:05 pmKos
45h 35m
2 stops
IAD8:40 amWashington, D.C. Dulles Intl
$1,818
Emirates
Oct 18
IAD10:55 amWashington, D.C. Dulles Intl
23h 40m
2 stops
KGS5:35 pmKos
Oct 21
KGS6:05 pmKos
45h 35m
2 stops
IAD8:40 amWashington, D.C. Dulles Intl
$1,819
Emirates
Sep 9
IAD10:55 amWashington, D.C. Dulles Intl
47h 35m
2 stops
KGS5:30 pmKos
Sep 30
KGS6:05 pmKos
45h 35m
2 stops
IAD8:40 amWashington, D.C. Dulles Intl
$1,993

momondo Fare Finder

 
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

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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

Fri 10/16

5:05 pm-7:35 am

3 stops31h 30m

Kos

Thu 10/22

6:05 pm-8:35 pm

3 stops33h 30m

$1,105

Washington, D.C.Kos

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

IADKGS

Washington, D.C. Dulles Intl

Fri 10/16

1:15 pm-9:55 pm

2 stops25h 40m

Kos

Thu 10/22

8:35 am-11:30 am

2 stops33h 55m

$1,116

Washington, D.C.Kos

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

IADKGS

Washington, D.C. Dulles Intl

Fri 10/16

9:55 am-3:45 pm

2 stops22h 50m

Kos

Thu 10/22

6:05 pm-7:00 pm

3 stops31h 55m

$1,201

Washington, D.C.Kos

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

IADKGS

Washington, D.C. Dulles Intl

Fri 10/16

10:20 pm-7:45 pm

1 stop14h 25m

Kos

Thu 10/22

11:00 am-4:45 pm

1 stop36h 45m

$1,364
Quickest round-trip

Washington, D.C.Kos

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

IADKGS

Washington, D.C. Dulles Intl

Thu 10/15

8:20 pm-3:10 pm

1 stop11h 50m

Kos

Thu 10/22

11:00 am-4:45 pm

1 stop36h 45m

$1,366

Washington, D.C.Kos

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

IADKGS

Washington, D.C. Dulles Intl

Fri 10/16

3:25 pm-7:45 pm

2 stops21h 20m

Kos

Thu 10/22

11:00 am-4:45 pm

1 stop36h 45m

$1,400

Washington, D.C.Kos

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

IADKGS

Washington, D.C. Dulles Intl

Sun 10/18

10:55 am-5:35 pm

2 stops23h 40m

Kos

Wed 10/21

6:05 pm-8:40 am

2 stops45h 35m

$1,818

Washington, D.C.Kos

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

IADKGS

Washington, D.C. Dulles Intl

Sun 10/18

10:55 am-5:35 pm

2 stops23h 40m

Kos

Wed 10/21

6:05 pm-8:40 am

2 stops45h 35m

$1,819

Washington, D.C.Kos

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

IADKGS

Washington, D.C. Dulles Intl

Thu 10/15

8:35 pm-1:15 pm

2 stops33h 40m

Kos

Thu 10/22

9:40 pm-8:44 am

3 stops42h 04m

$1,988

Washington, D.C.Kos

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

IADKGS

Washington, D.C. Dulles Intl

Thu 10/15

5:45 pm-8:50 pm

1 stop20h 05m

Kos

Thu 10/22

8:35 am-9:45 am

2 stops32h 10m

$2,849

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 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

What is the cheapest airline that flies from Washington, D.C. to Kos?

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

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

$354

Fastest flight time

16h 40m

Direct flights

None
The best one-way flight to Kos from Washington, D.C. in the past 72 hours is $354. The best round-trip flight deal from Washington, D.C. to Kos found on momondo in the last 72 hours is $1,105.
The fastest flight from Washington, D.C. to Kos takes 16h 40m
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 16h 40m 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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