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Cheap flights from Washington, D.C. Dulles Intl Airport to Cologne from $329

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 6/4. 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.
Multiple Airlines Logo
8:30 pm - 1:05 am
IAD
-
CGN
22h 35m
2 stops
Multiple Airlines Logo
1:20 pm - 3:10 pm
CGN
-
IAD
31h 50m
2 stops
$853Multiple Airlines
Wed, Aug 26 - Sun, Aug 30
Multiple Airlines Logo
3:45 pm - 5:20 pm
IAD
-
CGN
19h 35m
2 stops
Multiple Airlines Logo
6:00 pm - 9:05 pm
CGN
-
IAD
32h 05m
1 stop
$855Multiple Airlines
Wed, Oct 7 - Mon, Oct 26
Turkish Airlines Logo
9:45 pm - 9:25 am
IAD
-
CGN
29h 40m
1 stop
Turkish Airlines Logo
6:15 pm - 8:15 pm
CGN
-
IAD
31h 00m
1 stop
$870Turkish Airlines
Wed, Oct 7 - Mon, Oct 26
United Airlines Logo
10:20 pm - 5:20 pm
IAD
-
CGN
13h 00m
1 stop
United Airlines Logo
1:05 pm - 7:25 pm
CGN
-
IAD
12h 20m
1 stop
$871United Airlines
Tue, Sep 15 - Tue, Sep 22
Lufthansa Logo
10:20 pm - 5:20 pm
IAD
-
CGN
13h 00m
1 stop
Lufthansa Logo
1:05 pm - 7:25 pm
CGN
-
IAD
12h 20m
1 stop
$885Lufthansa
Wed, Sep 30 - Mon, Oct 12
Lufthansa Logo
10:20 pm - 6:55 pm
IAD
-
CGN
14h 35m
1 stop
Lufthansa Logo
8:30 am - 7:25 pm
CGN
-
IAD
16h 55m
1 stop
$887Lufthansa
Fri, Sep 25 - Sun, Oct 11
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
$889Turkish Airlines
Thu, Sep 17 - Sat, Sep 19
Multiple Airlines Logo
9:55 am - 5:40 pm
IAD
-
CGN
25h 45m
2 stops
Multiple Airlines Logo
1:05 pm - 7:25 pm
CGN
-
IAD
12h 20m
1 stop
$891Multiple Airlines
Fri, Sep 25 - Sun, Oct 11
United Airlines Logo
3:30 pm - 12:25 pm
IAD
-
CGN
14h 55m
2 stops
United Airlines Logo
1:05 pm - 7:25 pm
CGN
-
IAD
12h 20m
1 stop
$892United Airlines
Wed, Sep 30 - Mon, Oct 12
Multiple Airlines Logo
11:20 pm - 1:05 am
IAD
-
CGN
19h 45m
2 stops
Multiple Airlines Logo
9:10 am - 7:45 pm
CGN
-
IAD
15h 35m
2 stops
$896Multiple Airlines
Wed, Oct 7 - Mon, Oct 26

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

Our best Lufthansa deals on Washington, D.C. Dulles Intl Airport to Cologne flight tickets
Lufthansa
Sep 30
IAD10:20 pmWashington, D.C. Dulles Intl
13h 00m
1 stop
CGN5:20 pmCologne Köln/Bonn
Oct 12
CGN1:05 pmCologne Köln/Bonn
12h 20m
1 stop
IAD7:25 pmWashington, D.C. Dulles Intl
$885
Lufthansa
Sep 25
IAD10:20 pmWashington, D.C. Dulles Intl
14h 35m
1 stop
CGN6:55 pmCologne Köln/Bonn
Oct 11
CGN8:30 amCologne Köln/Bonn
16h 55m
1 stop
IAD7:25 pmWashington, D.C. Dulles Intl
$887
Lufthansa
Jul 8
IAD10:20 pmWashington, D.C. Dulles Intl
13h 00m
1 stop
CGN5:20 pmCologne Köln/Bonn
Jul 21
CGN8:30 amCologne Köln/Bonn
16h 55m
1 stop
IAD7:25 pmWashington, D.C. Dulles Intl
$1,039

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
Sep 15
IAD10:20 pmWashington, D.C. Dulles Intl
13h 00m
1 stop
CGN5:20 pmCologne Köln/Bonn
Sep 22
CGN1:05 pmCologne Köln/Bonn
12h 20m
1 stop
IAD7:25 pmWashington, D.C. Dulles Intl
$871
United Airlines
Sep 30
IAD3:30 pmWashington, D.C. Dulles Intl
14h 55m
2 stops
CGN12:25 pmCologne Köln/Bonn
Oct 12
CGN1:05 pmCologne Köln/Bonn
12h 20m
1 stop
IAD7:25 pmWashington, D.C. Dulles Intl
$892
United Airlines
Sep 30
IAD1:05 pmWashington, D.C. Dulles Intl
17h 20m
2 stops
CGN12:25 pmCologne Köln/Bonn
Oct 12
CGN1:05 pmCologne Köln/Bonn
12h 55m
2 stops
IAD8:00 pmWashington, D.C. Dulles Intl
$916

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 May 13, 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

Wed 8/26

8:30 pm-1:05 am

2 stops22h 35m

Cologne Köln/Bonn

Sun 8/30

1:20 pm-3:10 pm

2 stops31h 50m

$853

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 10/7

3:45 pm-5:20 pm

2 stops19h 35m

Cologne Köln/Bonn

Mon 10/26

6:00 pm-9:05 pm

1 stop32h 05m

$855

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 10/7

9:45 pm-9:25 am

1 stop29h 40m

Cologne Köln/Bonn

Mon 10/26

6:15 pm-8:15 pm

1 stop31h 00m

$870
Quickest round-trip

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 9/15

10:20 pm-5:20 pm

1 stop13h 00m

Cologne Köln/Bonn

Tue 9/22

1:05 pm-7:25 pm

1 stop12h 20m

$871

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 9/30

10:20 pm-5:20 pm

1 stop13h 00m

Cologne Köln/Bonn

Mon 10/12

1:05 pm-7:25 pm

1 stop12h 20m

$885

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Fri 9/25

10:20 pm-6:55 pm

1 stop14h 35m

Cologne Köln/Bonn

Sun 10/11

8:30 am-7:25 pm

1 stop16h 55m

$887

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 9/17

9:45 pm-9:25 am

1 stop29h 40m

Cologne Köln/Bonn

Sat 9/19

7:10 pm-7:50 pm

1 stop30h 40m

$889

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Fri 9/25

9:55 am-5:40 pm

2 stops25h 45m

Cologne Köln/Bonn

Sun 10/11

1:05 pm-7:25 pm

1 stop12h 20m

$891

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 9/30

3:30 pm-12:25 pm

2 stops14h 55m

Cologne Köln/Bonn

Mon 10/12

1:05 pm-7:25 pm

1 stop12h 20m

$892

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 10/7

11:20 pm-1:05 am

2 stops19h 45m

Cologne Köln/Bonn

Mon 10/26

9:10 am-7:45 pm

2 stops15h 35m

$896

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. 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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Cologne?

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 March. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you are unable to visit Cologne during the month of March, then departing from Washington, D.C. Dulles Intl Airport during the month January is also very affordable. Most momondo users find prices during this month for around $0.

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.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Cologne

  • 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
LufthansaPriceFrom $583Free CancellationRating
6.8
7,993 reviews
Search Lufthansa flights
United AirlinesPriceFrom $622Free CancellationRating
7.4
9,706 reviews
Search United Airlines 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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