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Cheap flights from Washington, D.C. Dulles Intl Airport to Cologne from $502

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 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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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.
Turkish Airlines Logo
1:20 pm - 6:10 pm
IAD
-
CGN
22h 50m
1 stop
Turkish Airlines Logo
7:10 pm - 11:35 am
CGN
-
IAD
22h 25m
1 stop
$628Turkish Airlines
mar., abr. 28 - mié., may. 6
Turkish Airlines Logo
1:20 pm - 6:10 pm
IAD
-
CGN
22h 50m
1 stop
Turkish Airlines Logo
7:10 pm - 11:35 am
CGN
-
IAD
22h 25m
1 stop
$629Turkish Airlines
mar., abr. 28 - mié., may. 6
Turkish Airlines Logo
9:45 pm - 9:25 am
IAD
-
CGN
29h 40m
1 stop
Turkish Airlines Logo
10:25 am - 11:35 am
CGN
-
IAD
31h 10m
1 stop
$630Turkish Airlines
mié., abr. 29 - jue., may. 7
Turkish Airlines Logo
9:45 pm - 9:25 am
IAD
-
CGN
29h 40m
1 stop
Turkish Airlines Logo
7:10 pm - 7:50 pm
CGN
-
IAD
30h 40m
1 stop
$648Turkish Airlines
mar., abr. 28 - mié., 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
$652Turkish Airlines
lun., abr. 20 - mié., may. 6
Turkish Airlines Logo
9:45 pm - 1:50 pm
IAD
-
CGN
34h 05m
1 stop
Turkish Airlines Logo
10:25 am - 7:50 pm
CGN
-
IAD
15h 25m
1 stop
$658Turkish Airlines
jue., sep. 10 - mar., sep. 15
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
$664Turkish Airlines
dom., sep. 13 - mié., sep. 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
$665Turkish Airlines
jue., abr. 23 - vie., may. 8
Turkish Airlines Logo
1:20 pm - 1:50 pm
IAD
-
CGN
18h 30m
1 stop
Turkish Airlines Logo
10:25 am - 7:50 pm
CGN
-
IAD
15h 25m
1 stop
$668Turkish Airlines
jue., sep. 10 - mar., sep. 15
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
$684Turkish Airlines
jue., abr. 23 - vie., may. 1

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
IAD1:20 pmWashington, D.C. Dulles Intl
22h 50m
1 stop
CGN6:10 pmCologne Köln/Bonn
May 6
CGN7:10 pmCologne Köln/Bonn
22h 25m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$628
Turkish Airlines
Apr 28
IAD1:20 pmWashington, D.C. Dulles Intl
22h 50m
1 stop
CGN6:10 pmCologne Köln/Bonn
May 6
CGN7:10 pmCologne Köln/Bonn
22h 25m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$629
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

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
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
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
16h 20m
2 stops
IAD11:25 pmWashington, D.C. Dulles Intl
$754

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 marzo 22, 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

Cheapest round-trip

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

mar. 4/28

1:20 pm-6:10 pm

1 stop22h 50m

Cologne Köln/Bonn

mié. 5/6

7:10 pm-11:35 am

1 stop22h 25m

$628

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

mar. 4/28

1:20 pm-6:10 pm

1 stop22h 50m

Cologne Köln/Bonn

mié. 5/6

7:10 pm-11:35 am

1 stop22h 25m

$629

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

mié. 4/29

9:45 pm-9:25 am

1 stop29h 40m

Cologne Köln/Bonn

jue. 5/7

10:25 am-11:35 am

1 stop31h 10m

$630

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

mar. 4/28

9:45 pm-9:25 am

1 stop29h 40m

Cologne Köln/Bonn

mié. 5/6

7:10 pm-7:50 pm

1 stop30h 40m

$648
Quickest round-trip

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

lun. 4/20

9:45 pm-6:10 pm

1 stop14h 25m

Cologne Köln/Bonn

mié. 5/6

10:25 am-7:50 pm

1 stop15h 25m

$652

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

jue. 9/10

9:45 pm-1:50 pm

1 stop34h 05m

Cologne Köln/Bonn

mar. 9/15

10:25 am-7:50 pm

1 stop15h 25m

$658

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

dom. 9/13

9:45 pm-6:10 pm

1 stop14h 25m

Cologne Köln/Bonn

mié. 9/23

10:25 am-7:50 pm

1 stop15h 25m

$664

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

jue. 4/23

9:45 pm-6:10 pm

1 stop14h 25m

Cologne Köln/Bonn

vie. 5/8

10:25 am-7:50 pm

1 stop15h 25m

$665

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

jue. 9/10

1:20 pm-1:50 pm

1 stop18h 30m

Cologne Köln/Bonn

mar. 9/15

10:25 am-7:50 pm

1 stop15h 25m

$668

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

jue. 4/23

9:45 pm-6:10 pm

1 stop14h 25m

Cologne Köln/Bonn

vie. 5/1

10:25 am-7:50 pm

1 stop15h 25m

$684

Flights are sorted by cheapest round-trip flights first.

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

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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

13h 00m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Cologne takes 13h 00m
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.
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  • 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 13h 00m 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
7,807 reviews
Search British Airways flights
United AirlinesPriceFrom $622Free CancellationRating
7.4
9,458 reviews
Search United Airlines flights
LufthansaPriceFrom $681Free CancellationRating
6.8
7,860 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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