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Cheap flights from Washington, D.C. Dulles Intl Airport to Cologne from $519

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. Dulles Intl Airport to Cologne departing on 5/10. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Cologne

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:20 pm - 4:30 pm
IAD
-
CGN
16h 10m
1 stop
British Airways Logo
5:05 pm - 8:55 pm
CGN
-
IAD
32h 50m
1 stop
$574British Airways
Tue, Mar 3 - Tue, Mar 10
British Airways Logo
10:45 pm - 4:10 pm
IAD
-
CGN
12h 25m
1 stop
British Airways Logo
5:15 pm - 4:35 pm
CGN
-
IAD
28h 20m
1 stop
$576British Airways
Mon, Mar 9 - Mon, Mar 23
British Airways Logo
11:30 am - 4:30 pm
IAD
-
CGN
23h 00m
2 stops
British Airways Logo
5:05 pm - 8:55 pm
CGN
-
IAD
32h 50m
1 stop
$625British Airways
Tue, Mar 3 - Tue, Mar 10
British Airways Logo
4:46 pm - 4:10 pm
IAD
-
CGN
18h 24m
2 stops
British Airways Logo
5:15 pm - 4:35 pm
CGN
-
IAD
28h 20m
1 stop
$626British Airways
Mon, Mar 9 - Mon, Mar 23
Turkish Airlines Logo
9:45 pm - 6:10 pm
IAD
-
CGN
14h 25m
1 stop
Turkish Airlines Logo
10:25 am - 7:50 pm
CGN
-
IAD
15h 25m
1 stop
$627Turkish Airlines
Tue, Apr 28 - Wed, May 6
Turkish Airlines Logo
9:45 pm - 6:10 pm
IAD
-
CGN
14h 25m
1 stop
Turkish Airlines Logo
10:25 am - 7:50 pm
CGN
-
IAD
15h 25m
1 stop
$644Turkish Airlines
Tue, Apr 28 - Wed, May 6
Turkish Airlines Logo
2:30 pm - 10:35 am
IAD
-
CGN
15h 05m
1 stop
Turkish Airlines Logo
11:35 am - 12:45 pm
CGN
-
IAD
30h 10m
1 stop
$646Turkish Airlines
Thu, Mar 19 - Thu, Mar 26
Turkish Airlines Logo
9:15 pm - 10:35 am
IAD
-
CGN
31h 20m
1 stop
Turkish Airlines Logo
6:15 pm - 7:20 pm
CGN
-
IAD
31h 05m
1 stop
$656Turkish Airlines
Tue, Feb 17 - Sun, Feb 22
Turkish Airlines Logo
9:45 pm - 6:10 pm
IAD
-
CGN
14h 25m
1 stop
Turkish Airlines Logo
7:10 pm - 11:35 am
CGN
-
IAD
22h 25m
1 stop
$661Turkish Airlines
Thu, Apr 30 - Wed, May 20
Turkish Airlines Logo
9:45 pm - 6:10 pm
IAD
-
CGN
14h 25m
1 stop
Turkish Airlines Logo
10:25 am - 7:50 pm
CGN
-
IAD
15h 25m
1 stop
$667Turkish Airlines
Thu, Apr 30 - Tue, May 19

Turkish Airlines flights from Washington, D.C. Dulles Intl Airport to Cologne

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Cologne flight tickets
Turkish Airlines
Apr 28
IAD9:45 pmWashington, D.C. Dulles Intl
14h 25m
1 stop
CGN6:10 pmCologne Köln/Bonn
May 6
CGN10:25 amCologne Köln/Bonn
15h 25m
1 stop
IAD7:50 pmWashington, D.C. Dulles Intl
$627
Turkish Airlines
Mar 19
IAD2:30 pmWashington, D.C. Dulles Intl
15h 05m
1 stop
CGN10:35 amCologne Köln/Bonn
Mar 26
CGN11:35 amCologne Köln/Bonn
30h 10m
1 stop
IAD12:45 pmWashington, D.C. Dulles Intl
$646
Turkish Airlines
Feb 17
IAD9:15 pmWashington, D.C. Dulles Intl
31h 20m
1 stop
CGN10:35 amCologne Köln/Bonn
Feb 22
CGN6:15 pmCologne Köln/Bonn
31h 05m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
$656

United Airlines flights from Washington, D.C. Dulles Intl Airport to Cologne

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Cologne flight tickets
United Airlines
Feb 18
IAD5:34 pmWashington, D.C. Dulles Intl
13h 16m
2 stops
CGN12:50 pmCologne Köln/Bonn
Feb 22
CGN9:10 amCologne Köln/Bonn
12h 25m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,137
United Airlines
Feb 18
IAD5:27 pmWashington, D.C. Dulles Intl
13h 23m
2 stops
CGN12:50 pmCologne Köln/Bonn
Feb 22
CGN9:10 amCologne Köln/Bonn
12h 25m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,139

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 February 4, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

Tue 3/3

6:20 pm-4:30 pm

1 stop16h 10m

Cologne Köln/Bonn

Tue 3/10

5:05 pm-8:55 pm

1 stop32h 50m

$574

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Mon 3/9

10:45 pm-4:10 pm

1 stop12h 25m

Cologne Köln/Bonn

Mon 3/23

5:15 pm-4:35 pm

1 stop28h 20m

$576

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 3/3

11:30 am-4:30 pm

2 stops23h 00m

Cologne Köln/Bonn

Tue 3/10

5:05 pm-8:55 pm

1 stop32h 50m

$625

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Mon 3/9

4:46 pm-4:10 pm

2 stops18h 24m

Cologne Köln/Bonn

Mon 3/23

5:15 pm-4:35 pm

1 stop28h 20m

$626

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 4/28

9:45 pm-6:10 pm

1 stop14h 25m

Cologne Köln/Bonn

Wed 5/6

10:25 am-7:50 pm

1 stop15h 25m

$627

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 4/28

9:45 pm-6:10 pm

1 stop14h 25m

Cologne Köln/Bonn

Wed 5/6

10:25 am-7:50 pm

1 stop15h 25m

$644

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 3/19

2:30 pm-10:35 am

1 stop15h 05m

Cologne Köln/Bonn

Thu 3/26

11:35 am-12:45 pm

1 stop30h 10m

$646

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 2/17

9:15 pm-10:35 am

1 stop31h 20m

Cologne Köln/Bonn

Sun 2/22

6:15 pm-7:20 pm

1 stop31h 05m

$656

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 4/30

9:45 pm-6:10 pm

1 stop14h 25m

Cologne Köln/Bonn

Wed 5/20

7:10 pm-11:35 am

1 stop22h 25m

$661

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 4/30

9:45 pm-6:10 pm

1 stop14h 25m

Cologne Köln/Bonn

Tue 5/19

10:25 am-7:50 pm

1 stop15h 25m

$667

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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. Dulles Intl Airport 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. Dulles Intl Airport is in November. Flight prices, which tend to average around $474, 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. Dulles Intl Airport during the month February is also very affordable. Most momondo users find prices during this month for around $571.

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

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

When to book flights from Washington, D.C. Dulles Intl Airport to Cologne

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Cologne (IAD to CGN) flight deals and tips

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

Fastest flight time

11h 10m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Cologne takes 11h 10m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Cologne. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Cologne.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Cologne Köln/Bonn by plane?

    A flight from Washington, D.C. Dulles Intl to Cologne Köln/Bonn will travel around 3976.6 mi. Typically, this will take 11h 10m by plane in normal conditions.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Cologne Köln/Bonn Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Cologne Köln/Bonn Airport.

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

    The necessary travel and health documents for your Cologne Köln/Bonn Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Cologne?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Cologne

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Cologne with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $561Free CancellationRating
6.7
7,716 reviews
Search British Airways flights
United AirlinesPriceFrom $634Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
LufthansaPriceFrom $681Free CancellationRating
6.8
7,759 reviews
Search Lufthansa flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cologne from Washington, D.C..

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

momondo does allow users to show only those flights to Cologne from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Cologne.

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

Of course. momondo tracks the price of Washington, D.C. to Cologne flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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