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Cheap flights from Washington, D.C. to Cologne from $310

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 12/12. 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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Cheap round-trip flights

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British Airways Logo
9:45 pm - 4:10 pmIAD-CGN
12h 25m1 stop
British Airways Logo
5:05 pm - 3:35 pmCGN-IAD
28h 30m1 stop
$526British Airways
Find Deal
Wed, Feb 11 - Tue, Feb 24
British Airways Logo
9:45 pm - 4:10 pmIAD-CGN
12h 25m1 stop
British Airways Logo
4:35 pm - 7:55 pmCGN-IAD
33h 20m1 stop
$553British Airways
Find Deal
Wed, Jan 21 - Sun, Jan 25
Turkish Airlines Logo
1:30 pm - 10:35 amIAD-CGN
15h 05m1 stop
Turkish Airlines Logo
11:35 am - 7:20 pmCGN-IAD
37h 45m1 stop
$599Turkish Airlines
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Mon, Dec 1 - Wed, Dec 10
Multiple Airlines Logo
7:40 pm - 9:25 pmBWI-CGN
19h 45m2 stops
Multiple Airlines Logo
6:00 am - 6:40 pmCGN-BWI
18h 40m2 stops
$602Multiple Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 8
Turkish Airlines Logo
1:30 pm - 5:15 pmIAD-CGN
21h 45m1 stop
Turkish Airlines Logo
6:15 pm - 11:45 amCGN-IAD
23h 30m1 stop
$636Turkish Airlines
Find Deal
Sat, Jan 17 - Thu, Jan 22
Multiple Airlines Logo
9:45 am - 10:25 pmIAD-CGN
30h 40m2 stops
Multiple Airlines Logo
1:20 pm - 8:05 pmCGN-IAD
12h 45m1 stop
$644Multiple Airlines
Find Deal
Mon, Dec 1 - Wed, Dec 10
Lufthansa Logo
10:20 pm - 5:20 pmIAD-CGN
13h 00m1 stop
Lufthansa Logo
8:30 am - 9:12 pmCGN-IAD
18h 42m2 stops
$675Lufthansa
Find Deal
Sun, Mar 29 - Tue, Apr 7
Lufthansa Logo
10:20 pm - 5:40 pmIAD-CGN
13h 20m1 stop
Lufthansa Logo
8:30 am - 7:25 pmCGN-IAD
16h 55m1 stop
$683Lufthansa
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Fri, Apr 3 - Tue, Apr 7
United Airlines Logo
10:20 pm - 5:40 pmIAD-CGN
13h 20m1 stop
United Airlines Logo
1:00 pm - 11:57 pmCGN-IAD
16h 57m2 stops
$693United Airlines
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Fri, Apr 3 - Tue, Apr 7
United Airlines Logo
4:30 pm - 5:40 pmDCA-CGN
19h 10m2 stops
United Airlines Logo
1:00 pm - 11:56 pmCGN-DCA
16h 56m2 stops
$697United Airlines
Find Deal
Fri, Apr 3 - Tue, Apr 7

British Airways flights from Washington, D.C. to Cologne

Our best British Airways deals on Washington, D.C. to Cologne flight tickets
British Airways
Feb 11
IAD9:45 pmWashington, D.C. Dulles Intl
12h 25m
1 stop
CGN4:10 pmCologne Köln/Bonn
Feb 24
CGN5:05 pmCologne Köln/Bonn
28h 30m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$526
Find similar
British Airways
Jan 21
IAD9:45 pmWashington, D.C. Dulles Intl
12h 25m
1 stop
CGN4:10 pmCologne Köln/Bonn
Jan 25
CGN4:35 pmCologne Köln/Bonn
33h 20m
1 stop
IAD7:55 pmWashington, D.C. Dulles Intl
$553
Find similar
British Airways
Mar 29
IAD7:15 pmWashington, D.C. Dulles Intl
19h 10m
1 stop
CGN8:25 pmCologne Köln/Bonn
Apr 7
CGN9:15 pmCologne Köln/Bonn
26h 10m
1 stop
IAD5:25 pmWashington, D.C. Dulles Intl
$576
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Turkish Airlines flights from Washington, D.C. to Cologne

Our best Turkish Airlines deals on Washington, D.C. to Cologne flight tickets
Turkish Airlines
Dec 1
IAD1:30 pmWashington, D.C. Dulles Intl
15h 05m
1 stop
CGN10:35 amCologne Köln/Bonn
Dec 10
CGN11:35 amCologne Köln/Bonn
37h 45m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
$599
Find similar
Turkish Airlines
Jan 17
IAD1:30 pmWashington, D.C. Dulles Intl
21h 45m
1 stop
CGN5:15 pmCologne Köln/Bonn
Jan 22
CGN6:15 pmCologne Köln/Bonn
23h 30m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$636
Find similar
Turkish Airlines
Nov 25
IAD1:30 pmWashington, D.C. Dulles Intl
15h 05m
1 stop
CGN10:35 amCologne Köln/Bonn
Dec 2
CGN6:15 pmCologne Köln/Bonn
23h 30m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$646
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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, momondo users made 832,500 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Cologne that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 2/11

9:45 pm-4:10 pm

1 stop12h 25m

Cologne Köln/Bonn

Tue 2/24

5:05 pm-3:35 pm

1 stop28h 30m

$526

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 1/21

9:45 pm-4:10 pm

1 stop12h 25m

Cologne Köln/Bonn

Sun 1/25

4:35 pm-7:55 pm

1 stop33h 20m

$553

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Mon 12/1

1:30 pm-10:35 am

1 stop15h 05m

Cologne Köln/Bonn

Wed 12/10

11:35 am-7:20 pm

1 stop37h 45m

$599

BaltimoreCologne

BWI - CGN

BWICGN

Baltimore/Washington

Wed 12/3

7:40 pm-9:25 pm

2 stops19h 45m

Cologne Köln/Bonn

Mon 12/8

6:00 am-6:40 pm

2 stops18h 40m

$602

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Sat 1/17

1:30 pm-5:15 pm

1 stop21h 45m

Cologne Köln/Bonn

Thu 1/22

6:15 pm-11:45 am

1 stop23h 30m

$636

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Mon 12/1

9:45 am-10:25 pm

2 stops30h 40m

Cologne Köln/Bonn

Wed 12/10

1:20 pm-8:05 pm

1 stop12h 45m

$644

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Sun 3/29

10:20 pm-5:20 pm

1 stop13h 00m

Cologne Köln/Bonn

Tue 4/7

8:30 am-9:12 pm

2 stops18h 42m

$675

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Fri 4/3

10:20 pm-5:40 pm

1 stop13h 20m

Cologne Köln/Bonn

Tue 4/7

8:30 am-7:25 pm

1 stop16h 55m

$683

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Fri 4/3

10:20 pm-5:40 pm

1 stop13h 20m

Cologne Köln/Bonn

Tue 4/7

1:00 pm-11:57 pm

2 stops16h 57m

$693

Washington, D.C.Cologne

DCA - CGN

DCACGN

Washington, D.C. Reagan-National

Fri 4/3

4:30 pm-5:40 pm

2 stops19h 10m

Cologne Köln/Bonn

Tue 4/7

1:00 pm-11:56 pm

2 stops16h 56m

$697

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cologne from

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

What is the cheapest month to fly to Cologne?

The cheapest month to fly to Cologne from Washington, D.C. is in November. Flight prices, which tend to average around $512, are often lower during this time because this is during the off-season. If you are unable to visit Cologne during the month of November, then departing from Washington, D.C. during the month February is also very affordable. Most momondo users find prices during this month for around $639.

What is the cheapest day to depart on your flight to Cologne?

The cheapest day to depart from Washington, D.C. to Cologne is on a Saturday when prices can be found for as low as $773. On the other hand, Thursday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,064.

What is the cheapest time of day to depart on your flight to Cologne?

The cheapest time of day to fly to Cologne is in the evening when flights can be purchased for as low as $912. In the afternoon is when there is more demand to fly to Cologne, so prices are often more expensive at around $967 per ticket.

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

You could potentially save up to 84% 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

Direct flights

None
There are no direct flights from Washington, D.C. to Cologne. There are no popular flight routes from Washington, D.C. to Cologne.
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  • 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. 10h 10m 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?

  • 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?

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 AirwaysPriceFrom $527Free CancellationRating
6.7
7,494 reviews
Search British Airways flights
United AirlinesPriceFrom $634Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
LufthansaPriceFrom $678Free CancellationRating
6.8
7,544 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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