$725 Cheap British Airways flights Kos (KGS) to Washington (IAD)

View $725 flight on Mon, Sep 15, 2025Opens in a new window

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$725 Cheap British Airways flights Kos (KGS) to Washington (IAD)

Prices were available within the past 7 days and start at $725 for one-way flights and $977 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Fri, Sep 12 - Fri, Sep 19
KGS
Kos
IAD
Washington
$977 Roundtrip, found 1 day ago
$977
Roundtrip
found 1 day ago
Select British Airways flight, departing Fri, Sep 12 from Kos to Washington, returning Fri, Sep 19, priced at $977 found 1 day ago
British Airways
Fri, Sep 12 - Fri, Sep 19
KGS
Kos
IAD
Washington
$1,068 Roundtrip, found 1 day ago
$1,068
Roundtrip
found 1 day ago
Select British Airways flight, departing Fri, Sep 12 from Kos to Washington, returning Fri, Sep 19, priced at $1,068 found 1 day ago
British Airways
Fri, Sep 12 - Fri, Sep 19
KGS
Kos
IAD
Washington
$1,177 Roundtrip, found 1 day ago
$1,177
Roundtrip
found 1 day ago
Select British Airways flight, departing Fri, Sep 12 from Kos to Washington, returning Fri, Sep 19, priced at $1,177 found 1 day ago
Flights from Kos (KGS) to Washington (IAD)
Origin airport
Kos Island Intl.
Destination airport
Washington Dulles Intl.
Distance
5338 mi

Frequently asked questions

How much is a British Airways flight from Kos Island Intl. Airport (KGS) to Washington Dulles Intl. Airport (IAD)?
You can find affordable round-trip British Airways flights from $977 from KGS to IAD by filtering your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $725 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from KGS to IAD with British Airways?
Search for return or one-way flights to Washington in January or February. You could find lower fares with British Airways during these quieter months.
What is the cheapest time to book flights from Kos Island Intl. Airport (KGS) to Washington Dulles Intl. Airport (IAD) with British Airways?
To get cheap flights from KGS to IAD with British Airways, start searching about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does British Airways fly nonstop from Kos Island Intl. Airport (KGS) to Washington Dulles Intl. Airport (IAD)?
Fill in your dates, click search and select the "Nonstop" filter on Expedia to browse any direct flights from KGS to IAD with British Airways or another airline.
What is the earliest British Airways flight from KGS to IAD?
To find the earliest departure from KGS to IAD with British Airways, filter your results by "Early Morning" and "Morning." Booking an early flight generally means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does British Airways fly into in Washington?
Take a British Airways flight from Kos Island Intl. Airport (KGS) to Washington, and you'll probably land at Washington Dulles Intl. Airport (IAD). This is the airline's main hub here.
What kind of luggage can I take on a British Airways flight from Kos Island Intl. Airport (KGS) to Washington Dulles Intl. Airport (IAD)?
British Airways allows you to bring 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 29 inches x 15 inches x 16 inches on standard economy flights from KGS to IAD. Additionally, you can bring 2 cabin bags with you in the cabin. This hand luggage must not exceed 19 inches x 9 inches x 17 inches and weigh no more than 50 lb. Baggage rules can vary depending on your fare type and cabin class, so double-check your booking or British Airways's website to avoid additional fees at the airport.
Why fly with British Airways from KGS to IAD?
British Airways makes flying from KGS to IAD enjoyable with top-tier customer service and an excellent in-flight experience. You even have the chance to collect points with British Airways Executive Club. Don't forget to join Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my British Airways flight from Kos Island Intl. Airport (KGS) to Washington Dulles Intl. Airport (IAD)?
Depending on the type of fare you purchased, a fee will generally apply if you cancel or reschedule your flight more than 24 hours after it's confirmed. To find tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when searching for flights. For more details on canceling or modifying your reservation, visit "Trips," select your flight and tick "Manage Booking."

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