WAS - KGS

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1 adult
1 adult, Economy, 0 bags

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Everything you should know

Top layover airports
Frankfurt am Main (FRA)
Cheapest • Avg $2,227 (round-trip)
Athens Eleftherios V. (ATH)
Shortest trip • 13h 35m (one-way)
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Cheap Flights from Washington, D.C. to Kos (WAS-KGS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

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

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WAS  Washington, D.C. All airports-KGS Kos Airport
5320 mimulti-stop
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KGS  Kos Airport-WAS Washington, D.C. All airports
5320 mimulti-stop
Multiple Airlines
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Price, demand and travel trends for Washington, D.C. to Kos flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

There's little price difference between Washington, D.C. to Kos routes. They average around $2,432 round-trip, based on KAYAK data over the past 12 months.

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

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Kos based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Washington, D.C. to Kos flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Washington, D.C. to Kos?

    Only Economy Class is available on flights from Washington, D.C. to Kos.

  • How long is a flight from Washington, D.C. to Kos?

    There are currently no nonstop flights available from Washington, D.C. to Kos. Flights with 1 layover take between 13h 35m and 13h 41m in total, depending on the connection.

  • Do I need a passport to fly from Washington, D.C. to Kos?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Washington, D.C. to Kos flight?

    Round-trip flights from Washington, D.C. to Kos range from $2,174 to $2,615, with an average of $2,432 over the past 12 months. Anything below $2,174 counts as a good deal.

  • What car rental options are available at Kos Airport (KGS)?

    Kos Airport (KGS) hosts 5 major car rental companies, with daily rates averaging $34 for economy cars. Top options include:

    • ABBYCAR
    • Exer Rent a Car
    • Caldera
    • Europcar
    • Alma Car Hire

  • Which airports can I use when flying from Washington, D.C. to Kos?

    Flights from Washington, D.C. to Kos may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Kos (KGS).

  • Which airports do connecting flights from Washington, D.C. to Kos pass through?

    Connecting flights from Washington, D.C. to Kos most commonly pass through:

    • Athens Eleftherios V. (ATH) - 88% of one-stop connections
    • Frankfurt am Main (FRA) - 13% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. to Kos?

    Yes. Flexible dates can save you up to 37% on flights from Washington, D.C. to Kos. Thursday is the cheapest departure day at $1,658 round-trip on average, while Wednesday is the most expensive at $2,615, a difference of $957.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Washington, D.C. to Kos?

    Flying via Athens Eleftherios V. (ATH) gives the shortest average 1-stop total travel time at 13h 35m, compared with 13h 41m via Frankfurt am Main (FRA).

  • What is the time difference between Washington, D.C. and Kos?

    Kos is 6 hours ahead of Washington, D.C. (Eastern European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Washington, D.C. to Kos flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Wednesday. On this route, Thursday flights average $1,658, about $957 less than Wednesday fares (37% savings) based on the last 12 months.

More options for your flight from Washington, D.C. to Kos

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