Which airport is the most popular layover for flights between Washington, D.C. and Cologne?

London (LHR) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Cologne?

Lufthansa, United Airlines and Icelandair are the top three most popular airlines that fly to Cologne from Washington, D.C. according to our data. Lufthansa is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Cologne. Keep in mind that there are 11 different airlines that fly to Cologne on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from Washington, D.C. to Cologne?

Flights via London (LHR) offer the lowest average round-trip price of $898.

What is the cheapest airline that flies from Washington, D.C. to Cologne Köln/Bonn?

United Airlines, Lufthansa, and Turkish Airlines are the most popular carriers operating from Washington, D.C. to Cologne Köln/Bonn

Which layover airport has the shortest travel time from Washington, D.C. to Cologne?

Flights connecting via Munich (MUC) have the shortest average one-way travel time: 11h 30m.

How long does it take to fly to Cologne?

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in Cologne you fly into. For example, flying from Washington, D.C. to Cologne takes 13h 30m on average. On the other hand, flying from Baltimore to Cologne takes 14h 58m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Which layover airport has the shortest connection time from Washington, D.C. to Cologne?

Munich (MUC) has the shortest average layover time for this route: 2h 20m.

When did momondo last update prices for flights from Washington, D.C. to Cologne Köln/Bonn Airport?

Prices for flights from Washington, D.C. to Cologne Köln/Bonn Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. to Cologne Köln/Bonn Airport?

There are 3 operators available for flights from Washington, D.C. to Cologne Köln/Bonn Airport as of March 2026.

How old do you have to be to fly from Washington, D.C. to Cologne Köln/Bonn Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Cologne Köln/Bonn Airport.

What documentation or ID do you need to fly to Cologne Köln/Bonn Airport?

The travel and health documents you'll need for your trip to Cologne Köln/Bonn Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cologne Köln/Bonn Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$429 Cheap Flights from Washington, D.C. to Cologne in 2026

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Find the cheapest flights from Washington, D.C. to Cologne

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One-way

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Enter your travel dates to find the best prices.

1:20 pm - 6:10 pm

IAD

CGN

22h 50m

1 stop

7:10 pm - 11:35 am

CGN

IAD

22h 25m

1 stop

$628Turkish Airlines

Thu, Apr 23 - Tue, Apr 28

9:45 pm - 9:25 am

IAD

CGN

29h 40m

1 stop

10:25 am - 11:35 am

CGN

IAD

31h 10m

1 stop

$630Turkish Airlines

Wed, Apr 29 - Thu, May 7

9:45 pm - 9:25 am

IAD

CGN

29h 40m

1 stop

7:10 pm - 7:50 pm

CGN

IAD

30h 40m

1 stop

$648Turkish Airlines

Tue, Apr 28 - Wed, May 6

9:45 pm - 1:50 pm

IAD

CGN

34h 05m

1 stop

10:25 am - 7:50 pm

CGN

IAD

15h 25m

1 stop

$658Turkish Airlines

Thu, Sep 10 - Tue, Sep 15

9:55 am - 12:25 pm

IAD

CGN

20h 30m

2 stops

1:05 pm - 7:25 pm

CGN

IAD

12h 20m

1 stop

$728Multiple Airlines

Tue, May 5 - Tue, May 12

11:00 am - 12:25 pm

DCA

CGN

19h 25m

2 stops

1:05 pm - 9:55 pm

CGN

DCA

14h 50m

2 stops

$730Multiple Airlines

Tue, May 5 - Tue, May 12

1:05 pm - 12:25 pm

DCA

CGN

17h 20m

2 stops

1:05 pm - 10:48 pm

CGN

DCA

15h 43m

2 stops

$754United Airlines

Thu, Apr 23 - Tue, Apr 28

4:10 pm - 5:40 pm

DCA

CGN

19h 30m

2 stops

6:20 am - 10:43 pm

CGN

DCA

22h 23m

2 stops

$831Air Canada

Fri, Apr 3 - Mon, Apr 20

3:42 pm - 12:25 pm

BWI

CGN

14h 43m

2 stops

8:30 am - 9:23 pm

CGN

BWI

18h 53m

2 stops

$835United Airlines

Wed, Apr 1 - Thu, Apr 16

4:20 pm - 12:25 pm

DCA

CGN

14h 05m

2 stops

1:05 pm - 10:28 pm

CGN

DCA

15h 23m

2 stops

$1,033Air Canada

Mon, Jun 1 - Tue, Jun 9

Turkish Airlines flights from Washington, D.C. to Cologne

Our best Turkish Airlines deals on Washington, D.C. to Cologne flight tickets

Turkish Airlines

Apr 23

IAD1:20 pmWashington, D.C. Dulles Intl

22h 50m

1 stop

CGN6:10 pmCologne Köln/Bonn

Apr 28

CGN7:10 pmCologne Köln/Bonn

22h 25m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$628

Turkish Airlines

Apr 29

IAD9:45 pmWashington, D.C. Dulles Intl

29h 40m

1 stop

CGN9:25 amCologne Köln/Bonn

May 7

CGN10:25 amCologne Köln/Bonn

31h 10m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$630

Turkish Airlines

Apr 28

IAD9:45 pmWashington, D.C. Dulles Intl

29h 40m

1 stop

CGN9:25 amCologne Köln/Bonn

May 6

CGN7:10 pmCologne Köln/Bonn

30h 40m

1 stop

IAD7:50 pmWashington, D.C. Dulles Intl

$648

United Airlines flights from Washington, D.C. to Cologne

Our best United Airlines deals on Washington, D.C. to Cologne flight tickets

United Airlines

May 4

IAD5:25 pmWashington, D.C. Dulles Intl

13h 00m

1 stop

CGN12:25 pmCologne Köln/Bonn

May 11

CGN1:05 pmCologne Köln/Bonn

12h 20m

1 stop

IAD7:25 pmWashington, D.C. Dulles Intl

$739

United Airlines

Apr 29

IAD1:10 pmWashington, D.C. Dulles Intl

17h 15m

2 stops

CGN12:25 pmCologne Köln/Bonn

May 8

CGN1:05 pmCologne Köln/Bonn

12h 20m

1 stop

IAD7:25 pmWashington, D.C. Dulles Intl

$744

United Airlines

May 4

IAD5:25 pmWashington, D.C. Dulles Intl

13h 00m

1 stop

CGN12:25 pmCologne Köln/Bonn

May 11

CGN1:05 pmCologne Köln/Bonn

16h 20m

2 stops

IAD11:25 pmWashington, D.C. Dulles Intl

$749

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 4/23

1:20 pm-6:10 pm

1 stop22h 50m

Cologne Köln/Bonn

Tue 4/28

7:10 pm-11:35 am

1 stop22h 25m

$628

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 4/29

9:45 pm-9:25 am

1 stop29h 40m

Cologne Köln/Bonn

Thu 5/7

10:25 am-11:35 am

1 stop31h 10m

$630

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 4/28

9:45 pm-9:25 am

1 stop29h 40m

Cologne Köln/Bonn

Wed 5/6

7:10 pm-7:50 pm

1 stop30h 40m

$648

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 9/10

9:45 pm-1:50 pm

1 stop34h 05m

Cologne Köln/Bonn

Tue 9/15

10:25 am-7:50 pm

1 stop15h 25m

$658

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 5/5

9:55 am-12:25 pm

2 stops20h 30m

Cologne Köln/Bonn

Tue 5/12

1:05 pm-7:25 pm

1 stop12h 20m

$728

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Tue 5/5

11:00 am-12:25 pm

2 stops19h 25m

Cologne Köln/Bonn

Tue 5/12

1:05 pm-9:55 pm

2 stops14h 50m

$730

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Thu 4/23

1:05 pm-12:25 pm

2 stops17h 20m

Cologne Köln/Bonn

Tue 4/28

1:05 pm-10:48 pm

2 stops15h 43m

$754

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Fri 4/3

4:10 pm-5:40 pm

2 stops19h 30m

Cologne Köln/Bonn

Mon 4/20

6:20 am-10:43 pm

2 stops22h 23m

$831

BaltimoreCologne

BWI - CGN

BWICGN

Baltimore/Washington

Wed 4/1

3:42 pm-12:25 pm

2 stops14h 43m

Cologne Köln/Bonn

Thu 4/16

8:30 am-9:23 pm

2 stops18h 53m

$835

Quickest round-trip

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Mon 6/1

4:20 pm-12:25 pm

2 stops14h 05m

Cologne Köln/Bonn

Tue 6/9

1:05 pm-10:28 pm

2 stops15h 23m

$1,033

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to Cologne

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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Can stopping save me money on Washington, D.C. to Cologne flights?

You could potentially save up to 34% on your flight if you consider stops on a Washington, D.C. to Cologne flight.

When to book flights from Washington, D.C. to Cologne

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Cologne according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to Cologne (WAS to CGN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Cologne

Fastest flight time	12h 55m
Direct flights	None

The fastest flight from Washington, D.C. to Cologne takes 12h 55m

There are no direct flights from Washington, D.C. to Cologne. There are no popular flight routes from Washington, D.C. to Cologne.

Search flight deals

How far is Washington, D.C. to Cologne Köln/Bonn by plane?
Washington, D.C. and Cologne Köln/Bonn are 3962.0 mi apart from one another. 12h 55m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to Cologne Köln/Bonn Airport?
Prices for flights from Washington, D.C. to Cologne Köln/Bonn Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to Cologne Köln/Bonn Airport?
There are 3 operators available for flights from Washington, D.C. to Cologne Köln/Bonn Airport as of March 2026.
How old do you have to be to fly from Washington, D.C. to Cologne Köln/Bonn Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Cologne Köln/Bonn Airport.
What documentation or ID do you need to fly to Cologne Köln/Bonn Airport?
The travel and health documents you'll need for your trip to Cologne Köln/Bonn Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cologne Köln/Bonn Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. to Cologne?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. to Cologne is British Airways (54% of total bookings). The next most popular airline is Lufthansa (46%).

Best airlines flying from Washington, D.C. to Cologne

Compare and see reviews for airlines that fly from Washington, D.C. to Cologne with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $561	Free Cancellation	Rating 6.7 7,815 reviews	Search British Airways flights
United Airlines	PriceFrom $622	Free Cancellation	Rating 7.4 9,471 reviews	Search United Airlines flights
Lufthansa	PriceFrom $681	Free Cancellation	Rating 6.8 7,864 reviews	Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Cologne?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Cologne. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to Cologne with flexible booking policies on momondo?

Yes. All flights to Cologne from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Cologne?

Once you have performed a search for Washington, D.C. to Cologne flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Cologne right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Cologne flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Washington, D.C. to Cologne from $429

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Cologne departing on 5/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Washington, D.C. to Cologne

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What is the cheapest airline that flies from Washington, D.C. to Cologne Köln/Bonn?

What airlines fly to Cologne?

Which airport is the most popular layover for flights between Washington, D.C. and Cologne?

Which layover airport offers the lowest fares from Washington, D.C. to Cologne?

Which layover airport has the shortest travel time from Washington, D.C. to Cologne?

Which layover airport has the shortest connection time from Washington, D.C. to Cologne?

How long does it take to fly to Cologne?

When to book flights from Washington, D.C. to Cologne

Cheap Washington, D.C. to Cologne (WAS to CGN) flight deals and tips

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Best airlines flying from Washington, D.C. to Cologne

Compare and see reviews for airlines that fly from Washington, D.C. to Cologne with momondo

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