IAD - KGS

$1,176 Find Cheap Flights from Washington Dulles Airport to Kos

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Kos departing on 4/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Kos

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Kos, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Kos, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,176
Multiple Airlines
Sun 4/26Sun 5/3
IAD - KGS • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Kos. You'll need at least 1 connection.
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Top layover airports
Zurich (ZRH)
Cheapest • Avg $671 (round-trip)
Frankfurt am Main (FRA)
Shortest trip • 12h 15m (one-way)
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Kos!
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Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Kos (IAD-KGS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Kos that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Kos

Sun, Apr 26 - Sun, May 3
Multiple Airlines Logo
8:55 pm - 10:05 pm
IAD
-
KGS
42h 10m
2 stops
Multiple Airlines Logo
9:00 pm - 3:45 pm
KGS
-
IAD
25h 45m
1 stop
$1,176Multiple Airlines
Sat, Jul 11 - Mon, Jul 27
Multiple Airlines Logo
8:45 pm - 8:15 pm
IAD
-
KGS
16h 30m
1 stop
Multiple Airlines Logo
11:40 pm - 3:45 pm
KGS
-
IAD
23h 05m
2 stops
$1,208Multiple Airlines
Sat, Jul 11 - Wed, Jul 22
Multiple Airlines Logo
8:45 pm - 8:15 pm
IAD
-
KGS
16h 30m
1 stop
Multiple Airlines Logo
4:20 pm - 7:00 pm
KGS
-
IAD
33h 40m
2 stops
$1,214Multiple Airlines
Tue, Sep 8 - Sat, Sep 19
Lufthansa Logo
10:20 pm - 7:05 pm
IAD
-
KGS
13h 45m
1 stop
Lufthansa Logo
9:40 am - 4:05 pm
KGS
-
IAD
13h 25m
1 stop
$1,220Lufthansa
Sat, Jul 11 - Tue, Jul 21
Multiple Airlines Logo
8:45 pm - 8:15 pm
IAD
-
KGS
16h 30m
1 stop
Multiple Airlines Logo
4:35 pm - 7:15 pm
KGS
-
IAD
33h 40m
2 stops
$1,225Multiple Airlines
Tue, Sep 8 - Sat, Sep 19
Lufthansa Logo
10:20 pm - 7:05 pm
IAD
-
KGS
13h 45m
1 stop
Lufthansa Logo
9:40 am - 9:10 pm
KGS
-
IAD
18h 30m
2 stops
$1,229Lufthansa
Sat, Jul 11 - Fri, Jul 24
Multiple Airlines Logo
8:45 pm - 8:15 pm
IAD
-
KGS
16h 30m
1 stop
Multiple Airlines Logo
10:00 am - 7:50 pm
KGS
-
IAD
40h 50m
2 stops
$1,241Multiple Airlines
Sat, Jul 11 - Thu, Jul 23
Multiple Airlines Logo
8:45 pm - 8:15 pm
IAD
-
KGS
16h 30m
1 stop
Multiple Airlines Logo
9:55 am - 11:35 am
KGS
-
IAD
32h 40m
2 stops
$1,242Multiple Airlines
Sat, Jul 11 - Sat, Jul 25
Multiple Airlines Logo
8:45 pm - 8:15 pm
IAD
-
KGS
16h 30m
1 stop
Multiple Airlines Logo
3:05 pm - 7:15 pm
KGS
-
IAD
35h 10m
2 stops
$1,247Multiple Airlines
Wed, Jul 8 - Fri, Jul 24
Multiple Airlines Logo
10:20 pm - 9:00 am
IAD
-
KGS
27h 40m
2 stops
Multiple Airlines Logo
10:25 pm - 3:45 pm
KGS
-
IAD
24h 20m
1 stop
$1,252Multiple Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Kos flights

Get data-powered insights and trends into flights from Dulles Intl to Kos to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington Dulles Airport to Kos?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Kos were found on Lufthansa ($1,220) and SWISS ($1,566).

Find deals

Good to know

Cheapest flight$1,176
Flight from Washington Dulles Airport to Kos

When to book flights from Dulles Intl to Kos

Are your dates flexible? Find out the best times to travel from Dulles Intl to Kos based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Kos flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Kos?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Kos was $1,176 for a round-trip ticket.

  • Do I need a passport to fly between Washington Dulles Airport and Kos?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Kos.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Kos?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Kos?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Kos.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Kos?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kos from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Kos?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kos with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and KGS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Kos?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kos from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Dulles Intl to Kos

Information on your arrival and departure airports

Washington Dulles Airport (IAD)
Kos (KGS)