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$363+ Cheap flights from Reagan-National (DCA) to Cologne (CGN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — CGN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Reagan-National to Cologne

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Cologne (CGN). 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 June 12, 2025.

Round-trip from

$562
(Booking.com)

One-way from

$363
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$1,112
From Washington, D.C. Reagan-National to Cologne Köln/Bonn
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One-way flight from Washington, D.C. Reagan-National to Cologne Köln/Bonn
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Highest demand for flights based on searches. 7% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Reagan-National to Cologne

Cheapest flights from Reagan-National to Cologne
Explore the most affordable flight options available from Reagan-National to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/46:50 pmDCA - CGN
2 stops16h 15mAir Canada
Wed 8/2012:55 pmCGN - DCA
2 stops27h 23mAir Canada
Deal found 6/10$562
This British Airways deal was found by Cheapflights users on 6/10. 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.
Sat 9/277:23 pmDCA - CGN
2 stops19h 27mBritish Airways
Sat 10/410:20 amCGN - DCA
2 stops15h 40mBritish Airways
Deal found 6/10$664
This Expedia deal was found by Cheapflights users on 6/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/27:59 pmDCA - CGN
2 stops18h 51mMultiple Airlines
Fri 8/152:20 pmCGN - DCA
2 stops14h 57mMultiple Airlines
Deal found 6/10$741
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 6/264:40 pmDCA - CGN
2 stops14h 55mAmerican Airlines
Thu 7/1010:15 amCGN - DCA
2 stops18h 00mAmerican Airlines
Deal found 6/11$1,235
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/267:00 pmDCA - CGN
2 stops16h 10mUnited Airlines
Sat 8/26:05 amCGN - DCA
2 stops17h 01mUnited Airlines
Deal found 6/11$1,305

Cheapflights Fare Finder

Customize your flight search to find flights from Reagan-National to Cologne 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 June 12, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Cologne that are best for you.

Fly from

Reagan-National

Fly to

Cologne

Route

Depart

Return

Price

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Mon 8/4

6:50 pm-5:05 pm

2 stops16h 15m

Cologne Köln/Bonn

Wed 8/20

12:55 pm-10:18 am

2 stops27h 23m

$562

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Sat 9/27

7:23 pm-8:50 pm

2 stops19h 27m

Cologne Köln/Bonn

Sat 10/4

10:20 am-8:00 pm

2 stops15h 40m

$664

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Sat 8/2

7:59 pm-8:50 pm

2 stops18h 51m

Cologne Köln/Bonn

Fri 8/15

2:20 pm-11:17 pm

2 stops14h 57m

$741

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Thu 6/26

4:40 pm-1:35 pm

2 stops14h 55m

Cologne Köln/Bonn

Thu 7/10

10:15 am-10:15 pm

2 stops18h 00m

$1,235

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Sat 7/26

7:00 pm-5:10 pm

2 stops16h 10m

Cologne Köln/Bonn

Sat 8/2

6:05 am-5:06 pm

2 stops17h 01m

$1,305

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Mon 7/21

5:00 pm-2:20 pm

2 stops15h 20m

$363

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Mon 9/8

3:35 pm-2:20 pm

2 stops16h 45m

$364

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Mon 10/6

8:40 pm-5:05 pm

2 stops14h 25m

$501

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Sat 6/21

8:40 pm-4:20 pm

2 stops13h 40m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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

Have a flexible travel schedule? Discover the best time to fly to Cologne 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 Cologne

Rainfall in Cologne by month

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

In terms of precipitation, rainfall in Cologne ranges from 2.0 - 3.5 inches per month. June is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Cologne when rainfall is around 2.0 in.

Temperature in Cologne by month

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

If weather is an important factor for your trip to Cologne, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Cologne

Get insights into the airlines that provide service to Cologne. 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 Cologne. Reviews last updated June 12, 2025.
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,531 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.6
Okay
7,008 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Cologne. 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 Cologne from Washington, D.C. Reagan-National?

    Most people fly into Cologne Köln/Bonn (CGN) if they book a flight to Cologne from Washington, D.C. Reagan-National. On average, Köln/Bonn has 0 inbound flights from Washington, D.C. Reagan-National per day from 1 airline. Cologne Köln/Bonn is conveniently located just 9.5 mi from Cologne’s city center.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Cologne one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $363. British Airways flights start at $364 while deals on Air Canada start at $5,078 one-way.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Cologne?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Cologne (average of $649). Flying from Washington, D.C. Reagan-National Airport to Cologne in June is currently the most expensive (average of $1,307). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Reagan-National to Cologne

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Reagan-National to Cologne

Discover the top airline that operate flights from Reagan-National to Cologne. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$585Average$693FlexibilityNo cancel feeOn-time76%

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