Cheap flights from District of Columbia to Kos from $324

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Kos departing on 9/11. 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 District of Columbia to Kos

Cheap round-trip flights

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8:45 pm - 7:40 pmIAD-KGS
15h 55m1 stop
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8:50 pm - 2:35 pmKGS-IAD
24h 45m1 stop
Mon, Sep 8 - Mon, Sep 15
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8:45 pm - 7:40 pmIAD-KGS
15h 55m1 stop
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8:50 pm - 9:05 pmKGS-IAD
31h 15m2 stops
Mon, Sep 8 - Mon, Sep 15
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10:14 pm - 7:05 pmIAD-KGS
37h 51m2 stops
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8:50 pm - 9:05 pmKGS-IAD
31h 15m2 stops
Mon, Sep 8 - Mon, Sep 15
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5:35 pm - 7:35 pmIAD-KGS
19h 00m1 stop
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8:50 pm - 2:35 pmKGS-IAD
24h 45m1 stop
Fri, Sep 12 - Mon, Sep 15
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5:35 pm - 7:35 pmIAD-KGS
19h 00m1 stop
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11:00 am - 4:15 pmKGS-IAD
36h 15m1 stop
Fri, Sep 5 - Mon, Sep 8
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5:35 pm - 7:35 pmIAD-KGS
19h 00m1 stop
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8:50 pm - 3:52 pmKGS-IAD
50h 02m2 stops
Fri, Sep 12 - Mon, Sep 15
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5:35 pm - 7:35 pmIAD-KGS
19h 00m1 stop
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11:00 am - 4:15 pmKGS-IAD
36h 15m1 stop
Fri, Sep 12 - Mon, Sep 15
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3:41 pm - 7:25 pmIAD-KGS
20h 44m2 stops
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11:00 am - 4:15 pmKGS-IAD
36h 15m1 stop
Fri, Sep 5 - Mon, Sep 8
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11:00 am - 7:35 pmDCA-KGS
25h 35m2 stops
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8:50 pm - 9:51 pmKGS-DCA
32h 01m2 stops
Fri, Sep 5 - Mon, Sep 8
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10:05 pm - 11:55 pmIAD-KGS
18h 50m2 stops
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6:00 am - 7:59 pmKGS-IAD
20h 59m3 stops
Mon, Sep 8 - Mon, Sep 15

Lufthansa flights from District of Columbia to Kos

Our best Lufthansa deals on District of Columbia to Kos flight tickets
Lufthansa
Aug 19
IAD3:25 pmWashington, D.C. Dulles Intl
14h 15m
1 stop
KGS12:40 pmKos
Aug 25
KGS12:40 pmKos
31h 50m
2 stops
IAD1:30 pmWashington, D.C. Dulles Intl
Lufthansa
Aug 18
IAD10:20 pmWashington, D.C. Dulles Intl
31h 20m
2 stops
KGS12:40 pmKos
Aug 25
KGS12:40 pmKos
39h 39m
2 stops
IAD9:19 pmWashington, D.C. Dulles Intl

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Kos 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 August 12, 2025.
Use the filters below to find and compare flights from District of Columbia to Kos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Mon 9/8

8:45 pm-7:40 pm

1 stop15h 55m

Kos

Mon 9/15

8:50 pm-2:35 pm

1 stop24h 45m

$626

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Mon 9/8

8:45 pm-7:40 pm

1 stop15h 55m

Kos

Mon 9/15

8:50 pm-9:05 pm

2 stops31h 15m

$644

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Mon 9/8

10:14 pm-7:05 pm

2 stops37h 51m

Kos

Mon 9/15

8:50 pm-9:05 pm

2 stops31h 15m

$662

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Fri 9/12

5:35 pm-7:35 pm

1 stop19h 00m

Kos

Mon 9/15

8:50 pm-2:35 pm

1 stop24h 45m

$696

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Fri 9/5

5:35 pm-7:35 pm

1 stop19h 00m

Kos

Mon 9/8

11:00 am-4:15 pm

1 stop36h 15m

$698

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Fri 9/12

5:35 pm-7:35 pm

1 stop19h 00m

Kos

Mon 9/15

8:50 pm-3:52 pm

2 stops50h 02m

$717

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Fri 9/12

5:35 pm-7:35 pm

1 stop19h 00m

Kos

Mon 9/15

11:00 am-4:15 pm

1 stop36h 15m

$786

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Fri 9/5

3:41 pm-7:25 pm

2 stops20h 44m

Kos

Mon 9/8

11:00 am-4:15 pm

1 stop36h 15m

$788

Washington, D.C.Kos

DCA - KGS

DCAKGS

Washington, D.C. Reagan-National

Fri 9/5

11:00 am-7:35 pm

2 stops25h 35m

Kos

Mon 9/8

8:50 pm-9:51 pm

2 stops32h 01m

$796

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Mon 9/8

10:05 pm-11:55 pm

2 stops18h 50m

Kos

Mon 9/15

6:00 am-7:59 pm

3 stops20h 59m

$804

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 District of Columbia 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 day to depart on your flight to Kos?

The cheapest day to depart from District of Columbia to Kos is on a Tuesday when prices can be found for as low as $1,026. On the other hand, Sunday is the most expensive day to depart from District of Columbia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,792.

What is the cheapest time of day to depart on your flight to Kos?

Flying to Kos from District of Columbia in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,310 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,792 on average. Flights to Kos from District of Columbia in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap District of Columbia to Kos flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Kos

Best Price Found

$324

Fastest flight time

14h 05m

Direct flights

None

Airports in Kos

1 airport
The best one-way flight to Kos from District of Columbia in the past 72 hours is $324. The best round-trip flight deal from District of Columbia to Kos found on momondo in the last 72 hours is $626.
The fastest flight from District of Columbia to Kos takes 14h 05m
There are no direct flights from District of Columbia to Kos. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Kos Airport and Washington, D.C. Dulles Intl Airport - Kos Airport.
There is 1 airport near Kos: Kos (KGS)
  • When did momondo last update prices for flights from District of Columbia to Kos Airport?

    Prices for flights from District of Columbia to Kos Airport refresh daily.

  • How old do you have to be to fly from District of Columbia 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 District of Columbia to Kos Airport.

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

    The travel and health documents you'll need for your trip to Kos Airport 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 Kos Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Kos?

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

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Kos?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from District of Columbia to Kos. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from District of Columbia to Kos with flexible booking policies on momondo?

momondo does allow users to show only those flights to Kos from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from District of Columbia to Kos?

Once you have performed a search for District of Columbia to Kos flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from District of Columbia to Kos right now. Can momondo alert me if prices change?

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

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Sun 8/17
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