HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kos

$1,545+ Cheap flights from Reagan-National (DCA) to Kos (KGS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — KGS
May 3 — May 101
Sat 5/3
Sat 5/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Kos with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Kos

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Kos (KGS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 28, 2025.

Round-trip from

$1,545
(British Airways)
From Washington, D.C. Reagan-National to Kos
Search Deals

Find flight deals from Reagan-National to Kos

Cheapest flights from Reagan-National to Kos
Explore the most affordable flight options available from Reagan-National to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2025.

This British Airways deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/192:59 pmDCA - KGS
2 stops22h 46mBritish Airways
Mon 8/2510:00 pmKGS - DCA
2 stops32h 17mBritish Airways
Deal found 4/27$1,545
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/192:59 pmDCA - KGS
2 stops22h 46mMultiple Airlines
Mon 8/2510:00 pmKGS - DCA
3 stops31h 37mMultiple Airlines
Deal found 4/27$1,832

Cheapflights Fare Finder

Customize your flight search to find flights from Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated April 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Kos that are best for you.

Fly from

Reagan-National

Fly to

Kos

Route

Depart

Return

Price

Washington, D.C.Kos

DCA - KGS

DCAKGS

Washington, D.C. Reagan-National

Tue 8/19

2:59 pm-8:45 pm

2 stops22h 46m

Kos

Mon 8/25

10:00 pm-11:17 pm

2 stops32h 17m

$1,545

Washington, D.C.Kos

DCA - KGS

DCAKGS

Washington, D.C. Reagan-National

Tue 8/19

2:59 pm-8:45 pm

2 stops22h 46m

Kos

Mon 8/25

10:00 pm-10:37 pm

3 stops31h 37m

$1,832

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Best time to book a flight from Reagan-National to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Kos

Rainfall in Kos by month

Plan your trip to Kos by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kos ranges from 0.1 - 6.7 inches per month. January is typically the wettest month, when rainfall can reach 6.7 in. July is typically the driest time to visit Kos when rainfall is around 0.1 in.

Temperature in Kos by month

Plan your trip to Kos by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kos, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Kos

Get insights into the airlines that provide service to Kos. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kos. Reviews last updated April 28, 2025.
British Airways
6.6
Okay
6,830 reviews

Comfort

6.7

Food

6.3

Boarding

6.8

Entertainment

6.4

Overall

6.6

Crew

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2025

ORD - LHR

Plane was delayed 2 hours. We were charged extra for luggage and seats. Seat rows were so close together that it was almost impossible to get in and out to use the bathroom, let alone sit comfortably. Food was mediocre at best. Your ambient music is the same tune that is used when AA puts me on hold. Flying has become a nightmare!
British Airways
6.6
Okay
6,830 reviews
British Airways
6.6
Okay
6,830 reviews

Comfort

6.7

Food

6.3

Boarding

6.8

Entertainment

6.4

Overall

6.6

Crew

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2025

ORD - LHR

Plane was delayed 2 hours. We were charged extra for luggage and seats. Seat rows were so close together that it was almost impossible to get in and out to use the bathroom, let alone sit comfortably. Food was mediocre at best. Your ambient music is the same tune that is used when AA puts me on hold. Flying has become a nightmare!

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Kos from Washington, D.C. Reagan-National?

    Most people fly into Kos (KGS) if they book a flight to Kos from Washington, D.C. Reagan-National. On average, Kos has 0 inbound flights from Washington, D.C. Reagan-National per day from 0 airlines. Kos is conveniently located just 12.8 mi from Kos’s city center.

  • Can I find deals for flights from Reagan-National to Kos that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Kos?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Kos.

  • Can I find deals for business class flights from Reagan-National to Kos?

    Yes. Cheapflights offers flight deals from Reagan-National to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.