$423 Cheap Flights from Washington (DCA) to Cologne (CGN)

View $423 flight on Wed, Nov 26, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Cologne - Bonn Airport (CGN)

Cheap Flights from Washington to Cologne (DCA-CGN)

Prices were available within the past 7 days and start at $423 for one-way flights and $592 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, Jan 19 - Mon, Jan 26
DCA
Washington
CGN
Cologne
$592 Roundtrip, found 1 day ago
$592
Roundtrip
found 1 day ago
Select British Airways flight, departing Mon, Jan 19 from Washington to Cologne, returning Mon, Jan 26, priced at $592 found 1 day ago
British Airways
Sun, Jan 11 - Tue, Jan 20
DCA
Washington
CGN
Cologne
$592 Roundtrip, found 2 hours ago
$592
Roundtrip
found 2 hours ago
Select British Airways flight, departing Sun, Jan 11 from Washington to Cologne, returning Tue, Jan 20, priced at $592 found 2 hours ago
Air Canada
Mon, Dec 8 - Mon, Dec 15
DCA
Washington
CGN
Cologne
$612 Roundtrip, found 3 days ago
$612
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Dec 8 from Washington to Cologne, returning Mon, Dec 15, priced at $612 found 3 days ago
Air Canada
Mon, Jan 19 - Mon, Jan 26
DCA
Washington
CGN
Cologne
$614 Roundtrip, found 1 day ago
$614
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, Jan 19 from Washington to Cologne, returning Mon, Jan 26, priced at $614 found 1 day ago
Air Canada
Sun, Jan 11 - Tue, Jan 20
DCA
Washington
CGN
Cologne
$614 Roundtrip, found 2 hours ago
$614
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Sun, Jan 11 from Washington to Cologne, returning Tue, Jan 20, priced at $614 found 2 hours ago
British Airways
Thu, Jan 15 - Mon, Jan 19
DCA
Washington
CGN
Cologne
$617 Roundtrip, found 2 days ago
$617
Roundtrip
found 2 days ago
Select British Airways flight, departing Thu, Jan 15 from Washington to Cologne, returning Mon, Jan 19, priced at $617 found 2 days ago
British Airways
Fri, Jan 16 - Tue, Jan 20
DCA
Washington
CGN
Cologne
$617 Roundtrip, found 2 hours ago
$617
Roundtrip
found 2 hours ago
Select British Airways flight, departing Fri, Jan 16 from Washington to Cologne, returning Tue, Jan 20, priced at $617 found 2 hours ago
Air Canada
Mon, Jan 19 - Mon, Jan 26
DCA
Washington
CGN
Cologne
$619 Roundtrip, found 1 day ago
$619
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, Jan 19 from Washington to Cologne, returning Mon, Jan 26, priced at $619 found 1 day ago
United
Thu, Nov 27 - Tue, Dec 9
DCA
Washington
CGN
Cologne
$633 Roundtrip, found 2 days ago
$633
Roundtrip
found 2 days ago
Select United flight, departing Thu, Nov 27 from Washington to Cologne, returning Tue, Dec 9, priced at $633 found 2 days ago
American Airlines
Mon, Dec 22 - Tue, Dec 30
DCA
Washington
CGN
Cologne
$1,668 Roundtrip, found 3 hours ago
$1,668
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Mon, Dec 22 from Washington to Cologne, returning Tue, Dec 30, priced at $1,668 found 3 hours ago

Alternative airports near Cologne

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cologne - Bonn CGN. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $673
CGN
Cologne - Bonn
CheapestClosest
Average driving time to city center14 min
Flights from $673

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Cologne - Bonn Airport (CGN) cost?
Grab a cheap one-way flight from $423 or cheap return flight from $592 from Ronald Reagan Washington National Airport (DCA) to Cologne - Bonn Airport (CGN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Cologne - Bonn Airport (CGN)?
Traveling in January may help you find better deals, as it's the cheapest month for flights between DCA and CGN. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Cologne - Bonn Airport (CGN)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from DCA to CGN. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Cologne - Bonn Airport (CGN)?
Direct flights from Ronald Reagan Washington National Airport (DCA) to Cologne - Bonn Airport (CGN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DCA to CGN?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Cologne - Bonn Airport (CGN)?
To reach Cologne - Bonn Airport (CGN) on schedule, opt for a flight that takes off from Ronald Reagan Washington National Airport (DCA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Cologne - Bonn Airport (CGN) last-minute?
Last-minute fares from DCA to CGN are typically more expensive. For the cheapest rates, start searching for flights as soon as possible. That being said, if you're flexible with your travel plans, you may find a cheap ticket just before your departure.
Is it cheaper to book a DCA to CGN flight and hotel package?
You can save money by booking a DCA to CGN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your ideal flights and accommodations, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Cologne - Bonn Airport (CGN)?
In most cases, you can reschedule or cancel your DCA to CGN flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more information, go to our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Cologne - Bonn
Airlines serving
Air Canada, American Airlines, British Airways, United
Roundtrip price
$591
Distance
3975 mi

Book with confidence

Washington to Cologne Flights

The cheapest times to fly from Washington to Cologne

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Cologne are during the month of January. You can find some of the cheapest flights from Washington to Cologne with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Cologne

Sunday is one of the best days to book for cheap flights from Washington to Cologne: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Cologne

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Cologne in 2025. You can also book with separate airlines for your outbound and return journeys, from $423 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Cologne flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Cologne airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Cologne Flights

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*Available to One Key members.