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Cheap flights from Washington, D.C. Dulles Intl Airport to Cologne from $317

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 8/18. 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

British Airways Logo
7:21 pm - 9:00 pmIAD-CGN
19h 39m2 stops
British Airways Logo
9:15 pm - 3:00 pmCGN-IAD
23h 45m2 stops
$564British Airways
Find Deal
Wed, Sep 3 - Tue, Sep 23
British Airways Logo
2:21 pm - 9:00 pmIAD-CGN
24h 39m2 stops
British Airways Logo
9:15 pm - 3:00 pmCGN-IAD
23h 45m2 stops
$565British Airways
Find Deal
Wed, Sep 3 - Tue, Sep 23
Turkish Airlines Logo
9:40 pm - 6:10 pmIAD-CGN
14h 30m1 stop
Turkish Airlines Logo
2:50 pm - 7:45 pmCGN-IAD
34h 55m1 stop
$611Turkish Airlines
Find Deal
Tue, Sep 30 - Tue, Oct 7
Turkish Airlines Logo
1:30 pm - 1:50 pmIAD-CGN
18h 20m1 stop
Turkish Airlines Logo
7:10 pm - 11:45 amCGN-IAD
22h 35m1 stop
$619Turkish Airlines
Find Deal
Wed, Sep 3 - Thu, Sep 18
Logo
9:45 am - 5:05 pmIAD-CGN
25h 20m2 stops
Logo
8:05 pm - 7:25 pmCGN-IAD
29h 20m1 stop
$627
Find Deal
Wed, Oct 8 - Tue, Oct 14
Lufthansa Logo
10:20 pm - 5:10 pmIAD-CGN
12h 50m1 stop
Lufthansa Logo
12:55 pm - 7:25 pmCGN-IAD
12h 30m1 stop
$631Lufthansa
Find Deal
Wed, Sep 3 - Tue, Sep 23
Logo
10:20 pm - 5:10 pmIAD-CGN
12h 50m1 stop
Logo
8:25 pm - 2:35 pmCGN-IAD
24h 10m1 stop
$632
Find Deal
Wed, Oct 8 - Tue, Oct 14
United Airlines Logo
5:16 pm - 12:10 pmIAD-CGN
12h 54m2 stops
United Airlines Logo
12:55 pm - 7:25 pmCGN-IAD
12h 30m1 stop
$637United Airlines
Find Deal
Wed, Sep 3 - Thu, Sep 18
United Airlines Logo
5:16 pm - 12:10 pmIAD-CGN
12h 54m2 stops
United Airlines Logo
6:05 am - 3:05 pmCGN-IAD
15h 00m1 stop
$638United Airlines
Find Deal
Wed, Sep 3 - Thu, Sep 18
Lufthansa Logo
11:55 pm - 5:10 pmIAD-CGN
12h 15m1 stop
Lufthansa Logo
1:15 pm - 8:05 pmCGN-IAD
12h 50m1 stop
$653Lufthansa
Find Deal
Sun, Oct 26 - Sun, Nov 2

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
Sep 30
IAD9:40 pmWashington, D.C. Dulles Intl
14h 30m
1 stop
CGN6:10 pmCologne Köln/Bonn
Oct 7
CGN2:50 pmCologne Köln/Bonn
34h 55m
1 stop
IAD7:45 pmWashington, D.C. Dulles Intl
$611
Find similar
Turkish Airlines
Sep 3
IAD1:30 pmWashington, D.C. Dulles Intl
18h 20m
1 stop
CGN1:50 pmCologne Köln/Bonn
Sep 18
CGN7:10 pmCologne Köln/Bonn
22h 35m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$619
Find similar
Turkish Airlines
Sep 3
IAD1:30 pmWashington, D.C. Dulles Intl
18h 20m
1 stop
CGN1:50 pmCologne Köln/Bonn
Sep 18
CGN7:10 pmCologne Köln/Bonn
22h 35m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$620
Find similar

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

Our best British Airways deals on Washington, D.C. Dulles Intl Airport to Cologne flight tickets
British Airways
Sep 3
IAD7:21 pmWashington, D.C. Dulles Intl
19h 39m
2 stops
CGN9:00 pmCologne Köln/Bonn
Sep 23
CGN9:15 pmCologne Köln/Bonn
23h 45m
2 stops
IAD3:00 pmWashington, D.C. Dulles Intl
$564
Find similar
British Airways
Sep 3
IAD2:21 pmWashington, D.C. Dulles Intl
24h 39m
2 stops
CGN9:00 pmCologne Köln/Bonn
Sep 23
CGN9:15 pmCologne Köln/Bonn
23h 45m
2 stops
IAD3:00 pmWashington, D.C. Dulles Intl
$565
Find similar
British Airways
Sep 3
IAD7:21 pmWashington, D.C. Dulles Intl
19h 39m
2 stops
CGN9:00 pmCologne Köln/Bonn
Sep 23
CGN9:15 pmCologne Köln/Bonn
23h 45m
2 stops
IAD3:00 pmWashington, D.C. Dulles Intl
$567
Find similar

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 July 31, 2025.
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

Wed 9/3

7:21 pm-9:00 pm

2 stops19h 39m

Cologne Köln/Bonn

Tue 9/23

9:15 pm-3:00 pm

2 stops23h 45m

$564

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 9/3

2:21 pm-9:00 pm

2 stops24h 39m

Cologne Köln/Bonn

Tue 9/23

9:15 pm-3:00 pm

2 stops23h 45m

$565

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 9/30

9:40 pm-6:10 pm

1 stop14h 30m

Cologne Köln/Bonn

Tue 10/7

2:50 pm-7:45 pm

1 stop34h 55m

$611

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 9/3

1:30 pm-1:50 pm

1 stop18h 20m

Cologne Köln/Bonn

Thu 9/18

7:10 pm-11:45 am

1 stop22h 35m

$619

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 10/8

9:45 am-5:05 pm

2 stops25h 20m

Cologne Köln/Bonn

Tue 10/14

8:05 pm-7:25 pm

1 stop29h 20m

$627

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 9/3

10:20 pm-5:10 pm

1 stop12h 50m

Cologne Köln/Bonn

Tue 9/23

12:55 pm-7:25 pm

1 stop12h 30m

$631

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 10/8

10:20 pm-5:10 pm

1 stop12h 50m

Cologne Köln/Bonn

Tue 10/14

8:25 pm-2:35 pm

1 stop24h 10m

$632

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 9/3

5:16 pm-12:10 pm

2 stops12h 54m

Cologne Köln/Bonn

Thu 9/18

12:55 pm-7:25 pm

1 stop12h 30m

$637

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 9/3

5:16 pm-12:10 pm

2 stops12h 54m

Cologne Köln/Bonn

Thu 9/18

6:05 am-3:05 pm

1 stop15h 00m

$638

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Sun 10/26

11:55 pm-5:10 pm

1 stop12h 15m

Cologne Köln/Bonn

Sun 11/2

1:15 pm-8:05 pm

1 stop12h 50m

$653

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 cheapest month to fly to Cologne?

The cheapest month to fly to Cologne from Washington, D.C. Dulles Intl Airport is in January. Flight prices, which tend to average around $678, are often lower during this time because this is during the off-season. If you are unable to visit Cologne during the month of January, then departing from Washington, D.C. Dulles Intl Airport during the month July is also very affordable. Most momondo users find prices during this month for around $686.

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

The cheapest day to depart from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to Cologne flights?

You could potentially save up to 33% 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

Best Price Found

$317

Fastest flight time

11h 25m

Direct flights

None

Airports in Cologne

1 airport
The best one-way flight to Cologne from Washington, D.C. Dulles Intl Airport in the past 72 hours is $317. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Cologne found on momondo in the last 72 hours is $564.
The fastest flight from Washington, D.C. Dulles Intl Airport to Cologne takes 11h 25m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Cologne. Popular non-direct route for this connection is Washington, D.C. Dulles Intl Airport - Cologne Köln/Bonn Airport.
There is 1 airport near Cologne: Cologne Köln/Bonn (CGN)
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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 11h 30m 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 $584Free CancellationRating
6.8
7,275 reviews
Search Lufthansa flights
British AirwaysPriceFrom $621Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
United AirlinesPriceFrom $811Free CancellationRating
7.4
8,900 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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