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Cologne

$437+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — CGN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$574
(Mytrip)

One-way from

$437
(Air Canada)

Popular in

December

Cheapest in

February

Average price

$971
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. 16% potential increase in price ($181 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($78 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:00 amDCA - CGN
3 stops32h 35mMultiple Airlines
Tue 10/216:30 pmCGN - DCA
3 stops33h 21mMultiple Airlines
Deal found 9/16$574
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/294:40 pmDCA - CGN
2 stops14h 30mAir Canada
Wed 11/128:40 amCGN - DCA
2 stops15h 25mAir Canada
Deal found 9/14$706
This Gotogate deal was found by Cheapflights users on 9/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:59 amDCA - CGN
2 stops33h 16mAir Canada
Thu 11/68:40 amCGN - DCA
2 stops19h 16mAir Canada
Deal found 9/15$721
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/301:00 pmDCA - CGN
2 stops23h 15mUnited Airlines
Thu 11/61:35 pmCGN - DCA
2 stops25h 23mUnited Airlines
Deal found 9/15$728
This Expedia deal was found by Cheapflights users on 9/15. 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.
Mon 10/134:38 pmDCA - CGN
2 stops15h 42mBritish Airways
Mon 10/209:15 pmCGN - DCA
2 stops29h 01mBritish Airways
Deal found 9/15$741
This British Airways deal was found by Cheapflights users on 9/17. 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.
Mon 10/205:30 pmDCA - CGN
2 stops14h 50mBritish Airways
Mon 11/35:15 pmCGN - DCA
2 stops34h 15mBritish Airways
Deal found 9/17$762
This Air Canada deal was found by Cheapflights users on 9/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:40 pmDCA - CGN
2 stops14h 25mAir Canada
Tue 10/2112:55 pmCGN - DCA
2 stops15h 39mAir Canada
Deal found 9/16$765
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 9/294:40 pmDCA - CGN
2 stops15h 40mAmerican Airlines
Tue 10/143:30 pmCGN - DCA
2 stops25h 33mAmerican Airlines
Deal found 9/16$767
This lastminute.com deal was found by Cheapflights users on 9/15. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/274:10 pmDCA - CGN
2 stops18h 10mAir Canada
Mon 12/19:10 amCGN - DCA
2 stops16h 35mAir Canada
Deal found 9/15$770
This Orbitz deal was found by Cheapflights users on 9/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1611:00 amDCA - CGN
2 stops19h 15mAir Canada
Sun 10/196:35 pmCGN - DCA
2 stops29h 29mAir Canada
Deal found 9/16$785
This British Airways deal was found by Cheapflights users on 9/15. 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.
Sun 10/267:06 pmDCA - CGN
2 stops16h 24mBritish Airways
Sun 11/24:35 pmCGN - DCA
2 stops32h 21mBritish Airways
Deal found 9/15$858

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 September 17, 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

Tue 10/14

6:59 am-8:35 pm

2 stops31h 36m

Cologne Köln/Bonn

Tue 10/21

6:30 pm-9:51 pm

3 stops33h 21m

$574

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Wed 10/29

4:40 pm-12:10 pm

2 stops14h 30m

Cologne Köln/Bonn

Wed 11/12

8:40 am-6:05 pm

2 stops15h 25m

$706

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Thu 10/30

6:59 am-9:15 pm

2 stops33h 16m

Cologne Köln/Bonn

Thu 11/6

8:40 am-9:56 pm

2 stops19h 16m

$721

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Thu 10/30

1:00 pm-5:15 pm

2 stops23h 15m

Cologne Köln/Bonn

Thu 11/6

1:35 pm-8:58 am

2 stops25h 23m

$728

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Mon 10/13

4:38 pm-2:20 pm

2 stops15h 42m

Cologne Köln/Bonn

Mon 10/20

9:15 pm-8:16 pm

2 stops29h 01m

$741

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Mon 10/20

5:30 pm-2:20 pm

2 stops14h 50m

Cologne Köln/Bonn

Mon 11/3

5:15 pm-9:30 pm

2 stops34h 15m

$762

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Tue 10/14

8:40 pm-5:05 pm

2 stops14h 25m

Cologne Köln/Bonn

Tue 10/21

12:55 pm-10:34 pm

2 stops15h 39m

$765

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Mon 9/29

4:40 pm-2:20 pm

2 stops15h 40m

Cologne Köln/Bonn

Tue 10/14

3:30 pm-11:03 am

2 stops25h 33m

$767

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Thu 11/27

4:10 pm-4:20 pm

2 stops18h 10m

Cologne Köln/Bonn

Mon 12/1

9:10 am-7:45 pm

2 stops16h 35m

$770

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Tue 10/14

1:00 pm-12:15 pm

2 stops17h 15m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 19 results
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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.

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 0 airlines. Cologne Köln/Bonn is conveniently located just 9.5 mi from Cologne’s city center.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Cologne?

    For as low as $706, Air Canada can have you in Cologne from Washington, D.C. Reagan-National Airport in 14h 30m. Washington, D.C. Reagan-National Airport and Cologne are separated by a distance of 3974 mi.

  • 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 United Airlines, which is currently one of the cheapest options available, starting at $451. Air Canada flights start at $480 while deals on American Airlines start at $499 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 $1,249). 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.

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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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