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 $1,257). 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.

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.

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).

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Cologne?

The best pricing can be found in the month of February. Prices to Cologne from Washington, D.C. Reagan-National Airport average $860. You can even find prices in February for less than $860, as users have found deals to Cologne from as low as $491. The month of December appears to be one of the more expensive times to travel to Cologne from Washington, D.C. Reagan-National Airport. Flying in the targeted month can save you up to 58%.

What is the cheapest time of day to fly from DCA to CGN?

When flying from Washington, D.C. Reagan-National Airport to Cologne, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

$315+ Flights from Washington, D.C. Reagan-National Airport to Cologne

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Cheap flight deals from Reagan-National to Cologne

Round-trip from	$543 (Flighttix)
One-way from	$315 (British Airways)
Popular in	December
Cheapest in	February
Average price	$807

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. 8% potential increase in price ($78 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 July 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 julio 2, 2025.

lun. 8/45:14 pmDCA - CGN

2 stops15h 06mBritish Airways

mié. 8/2010:15 pmCGN - DCA

2 stops24h 01mBritish Airways

Deal found 7/1

$543

mar. 12/234:10 pmDCA - CGN

2 stops13h 55mAir Canada

mar. 12/309:00 amCGN - DCA

2 stops17h 40mAir Canada

Deal found 7/2

$625

sáb. 8/28:40 pmDCA - CGN

2 stops33h 35mUnited Airlines

sáb. 9/66:05 amCGN - DCA

2 stops16h 56mUnited Airlines

Deal found 7/1

$706

dom. 7/203:59 pmDCA - CGN

2 stops22h 26mAmerican Airlines

mar. 7/293:30 pmCGN - DCA

2 stops22h 19mAmerican Airlines

Deal found 6/30

$851

jue. 8/144:14 pmDCA - CGN

2 stops12h 56mMultiple Airlines

jue. 8/216:20 amCGN - DCA

2 stops16h 01mMultiple Airlines

Deal found 6/30

$859

Best flights from Reagan-National to Cologne
Discover carefully curated flight deals from Reagan-National to Cologne that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 2, 2025.

lun. 8/45:14 pmDCA - CGN

2 stops15h 06mBritish Airways

mié. 8/2010:15 pmCGN - DCA

2 stops24h 01mBritish Airways

Deal found 7/1

$543

sáb. 8/28:40 pmDCA - CGN

2 stops33h 35mUnited Airlines

sáb. 9/66:05 amCGN - DCA

2 stops16h 56mUnited Airlines

Deal found 7/1

$706

dom. 7/203:59 pmDCA - CGN

2 stops22h 26mAmerican Airlines

mar. 7/293:30 pmCGN - DCA

2 stops22h 19mAmerican Airlines

Deal found 6/30

$851

jue. 8/144:14 pmDCA - CGN

2 stops12h 56mMultiple Airlines

jue. 8/216:20 amCGN - DCA

2 stops16h 01mMultiple Airlines

Deal found 6/30

$859

sáb. 8/164:30 pmDCA - CGN

2 stops17h 20mAir Canada

sáb. 8/237:05 amCGN - DCA

2 stops20h 43mAir Canada

Deal found 7/1

$1,081

Last-minute flights from Reagan-National to Cologne
Discover last-minute flight deals from Reagan-National to Cologne. Data last updated julio 2, 2025 and is based on user searches.

mar. 7/87:06 pmDCA - CGN

2 stops20h 19mBritish Airways

mar. 7/223:30 pmCGN - DCA

2 stops22h 19mBritish Airways

Deal found 6/30

$916

dom. 7/203:59 pmDCA - CGN

2 stops22h 26mAmerican Airlines

mar. 7/293:30 pmCGN - DCA

2 stops22h 19mAmerican Airlines

Deal found 6/30

$851

sáb. 8/28:40 pmDCA - CGN

2 stops33h 35mUnited Airlines

sáb. 9/66:05 amCGN - DCA

2 stops16h 56mUnited Airlines

Deal found 7/1

$706

lun. 8/45:14 pmDCA - CGN

2 stops15h 06mBritish Airways

mié. 8/2010:15 pmCGN - DCA

2 stops24h 01mBritish Airways

Deal found 7/1

$543

jue. 8/144:14 pmDCA - CGN

2 stops12h 56mMultiple Airlines

jue. 8/216:20 amCGN - DCA

2 stops16h 01mMultiple Airlines

Deal found 6/30

$859

sáb. 8/164:30 pmDCA - CGN

2 stops17h 20mAir Canada

sáb. 8/237:05 amCGN - DCA

2 stops20h 43mAir Canada

Deal found 7/1

$1,081

One-way flights from Reagan-National to Cologne
Search for one-way flight options from Reagan-National to Cologne. Find affordable one-way fares based on user searches. Data last updated julio 2, 2025.

vie. 8/156:30 amDCA - CGN

2 stops21h 00mBritish Airways

Deal found 7/1

$315

lun. 9/157:00 amDCA - CGN

3 stops27h 00mMultiple Airlines

Deal found 6/29

$413

lun. 9/154:35 pmDCA - CGN

2 stops18h 30mAir Canada

Deal found 6/29

$440

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

lun. 8/4

5:14 pm-2:20 pm

2 stops15h 06m

Cologne Köln/Bonn

mié. 8/20

10:15 pm-4:16 pm

2 stops24h 01m

$543

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

mar. 12/23

4:10 pm-12:05 pm

2 stops13h 55m

Cologne Köln/Bonn

mar. 12/30

9:00 am-8:40 pm

2 stops17h 40m

$625

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

sáb. 8/2

8:40 pm-12:15 pm

2 stops33h 35m

Cologne Köln/Bonn

sáb. 9/6

6:05 am-5:01 pm

2 stops16h 56m

$706

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

dom. 7/20

3:59 pm-8:25 pm

2 stops22h 26m

Cologne Köln/Bonn

mar. 7/29

3:30 pm-7:49 am

2 stops22h 19m

$851

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

jue. 8/14

4:14 pm-11:10 am

2 stops12h 56m

Cologne Köln/Bonn

jue. 8/21

6:20 am-4:21 pm

2 stops16h 01m

$859

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

vie. 8/15

6:30 am-9:30 am

2 stops21h 00m

$315

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

lun. 9/15

7:00 am-4:00 pm

3 stops27h 00m

$413

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

lun. 9/15

4:35 pm-5:05 pm

2 stops18h 30m

$440

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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.

Reviews of airlines servicing Cologne

See what other customers who have flown with United Airlines, American Airlines, and Air Canada from Washington, D.C. Reagan-National Airport to Cologne have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,861 reviews

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

8,861 reviews

United Airlines

7.4

Good

8,861 reviews

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

8,861 reviews

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

9,669 reviews

United Airlines

7.4

Good

8,861 reviews

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

7,089 reviews

United Airlines

7.4

Good

8,861 reviews

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

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.
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 $1,257). 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

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Reagan-National to Cologne

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest$585	Average$693	FlexibilityNo cancel fee	On-time76%

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$315+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Cologne with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Reagan-National to Cologne

Round-trip from

One-way from

Popular in

Cheapest in

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Find flight deals from Reagan-National to Cologne

Cheapest flights from Reagan-National to CologneExplore 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 julio 2, 2025.

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 julio 2, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Cologne that are best for you.

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.

Reviews of airlines servicing Cologne

See what other customers who have flown with United Airlines, American Airlines, and Air Canada from Washington, D.C. Reagan-National Airport to Cologne have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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.

Alternative routes for Reagan-National to Cologne

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Reagan-National to Cologne

100% Free

Book with Flexibility

Travel Smart

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 julio 2, 2025.