Question 1

What is the cheapest flight from Washington, D.C. to Kos?

Accepted Answer

In the last 3 days, the lowest price for a flight from Washington, D.C. to Kos was $1,406 for a round-trip ticket. <a href='/flight-routes/Washington-WAS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 2

Do I need a passport to fly between Washington, D.C. and Kos?

Accepted Answer

Yes, you'll most likely have to show a valid passport before boarding the plane in Washington, D.C. and on arrival in Kos. <a href='/flight-routes/Washington-WAS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 3

Which airports will I be using when flying from Washington, D.C. to Kos?

Accepted Answer

On your way to Kos, you’ll fly out from one of these Washington, D.C. airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You’ll be landing at Kos. <a href='/flight-routes/Washington-WAS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 4

Which aircraft models fly most regularly from Washington, D.C. to Kos?

Accepted Answer

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

Question 5

How does KAYAK find such low prices on flights from Washington, D.C. to Kos?

Accepted Answer

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, D.C. to Kos. <a href='/flight-routes/Washington-WAS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 6

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Kos?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kos from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/Washington-WAS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 7

What is the Hacker Fare option on flights from Washington, D.C. to Kos?

Accepted Answer

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, D.C. with another airline. <a href='/flight-routes/Washington-WAS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 8

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Kos?

Accepted Answer

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, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Washington-WAS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 9

What is the cheapest layover airport when flying from Washington, D.C. to Kos?

Accepted Answer

Flights via Zurich (ZRH) offer the most affordable fares, with an average round-trip price of $671.

Question 10

What is the most popular layover airport when flying from Washington, D.C. to Kos?

Accepted Answer

Zurich (ZRH) is the top choice – 67% of KAYAK users who clicked on 1-stop flights from Washington, D.C. to Kos picked an itinerary connecting there.

Question 11

Which layover airport has the quickest connection when flying from Washington, D.C. to Kos?

Accepted Answer

If you prefer a quick connection, Frankfurt am Main (FRA) often has the shortest layovers from Washington, D.C. to Kos, with an average of 1h 18m.

Question 12

Which layover airport offers the shortest total travel time from Washington, D.C. to Kos?

Accepted Answer

Consider flying via Frankfurt am Main (FRA) for the shortest journey. The average one-way travel time for flights connecting there is 12h 15m.

Question 13

Which airlines provide the cheapest flights from Washington, D.C. to Kos?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. to Kos were found on Lufthansa ($1,406) and Brussels Airlines ($1,523).

Question 14

Which airlines provide the cheapest flights from Washington, D.C. to Kos?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. to Kos were found on Lufthansa ($1,406) and Brussels Airlines ($1,523).

WAS - KGS

$1,406 Find Cheap Flights from Washington, D.C. to Kos

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

Everything you should know

Cheap Flights from Washington, D.C. to Kos (WAS-KGS)

Recent round-trip flight deals from Washington, D.C. to Kos

Recent one-way flight deals from Washington, D.C. to Kos

KAYAK's insights & trends for Washington, D.C. to Kos flights

Get data-powered insights and trends into flights from Washington, D.C. 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, D.C. to Kos?

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. to Kos were found on Lufthansa ($1,406) and Brussels Airlines ($1,523).

What is the most popular layover airport when flying from Washington, D.C. to Kos?

Zurich (ZRH) is the top choice – 67% of KAYAK users who clicked on 1-stop flights from Washington, D.C. to Kos picked an itinerary connecting there.

What is the cheapest layover airport when flying from Washington, D.C. to Kos?

Flights via Zurich (ZRH) offer the most affordable fares, with an average round-trip price of $671.

Which layover airport offers the shortest total travel time from Washington, D.C. to Kos?

Consider flying via Frankfurt am Main (FRA) for the shortest journey. The average one-way travel time for flights connecting there is 12h 15m.

Which layover airport has the quickest connection when flying from Washington, D.C. to Kos?

If you prefer a quick connection, Frankfurt am Main (FRA) often has the shortest layovers from Washington, D.C. to Kos, with an average of 1h 18m.

Good to know

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

FAQs for booking flights from Washington, D.C. to Kos

What is the cheapest flight from Washington, D.C. to Kos?

In the last 3 days, the lowest price for a flight from Washington, D.C. to Kos was $1,406 for a round-trip ticket.

Do I need a passport to fly between Washington, D.C. and Kos?

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

Which airports will I be using when flying from Washington, D.C. to Kos?

On your way to Kos, you’ll fly out from one of these Washington, D.C. airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You’ll be landing at Kos.

Which aircraft models fly most regularly from Washington, D.C. to Kos?

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

How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Kos.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Kos?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kos from Washington, D.C. 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, D.C. 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, D.C. with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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, D.C. 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 Washington, D.C. to Kos

Information on your arrival and departure airports

Cabin class types available on flights from Washington, D.C. to Kos

Complete your trip to Kos with a hotel stay or car rental

Find direct flights to and from Washington, D.C. and Kos

Flights to other popular destinations

Flights from domestic origins to Kos

Choose which airport to fly into in Kos