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Cheap flights from Washington, D.C. Dulles Intl Airport to Cologne from $463

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 2/22. 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

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British Airways Logo
6:20 pm - 4:10 pmIAD-CGN
15h 50m1 stop
British Airways Logo
5:05 pm - 3:35 pmCGN-IAD
28h 30m1 stop
$528British Airways
Find Deal
Wed, Feb 11 - Tue, Feb 24
British Airways Logo
6:20 pm - 4:10 pmIAD-CGN
15h 50m1 stop
British Airways Logo
4:35 pm - 7:55 pmCGN-IAD
33h 20m1 stop
$553British Airways
Find Deal
Wed, Feb 11 - Sun, Feb 22
Multiple Airlines Logo
9:45 am - 12:10 pmIAD-CGN
20h 25m2 stops
Multiple Airlines Logo
7:40 pm - 8:05 pmCGN-IAD
30h 25m1 stop
$598Multiple Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Air Canada Logo
4:30 pm - 12:10 pmIAD-CGN
13h 40m2 stops
Air Canada Logo
8:40 am - 8:59 pmCGN-IAD
18h 19m2 stops
$612Air Canada
Find Deal
Tue, Dec 2 - Tue, Dec 9
Multiple Airlines Logo
9:00 am - 12:10 pmIAD-CGN
21h 10m2 stops
Multiple Airlines Logo
7:40 pm - 8:05 pmCGN-IAD
30h 25m1 stop
$615Multiple Airlines
Find Deal
Mon, Nov 17 - Tue, Dec 2
Air Canada Logo
4:30 pm - 12:10 pmIAD-CGN
13h 40m2 stops
Air Canada Logo
6:45 am - 8:59 pmCGN-IAD
20h 14m2 stops
$621Air Canada
Find Deal
Tue, Nov 18 - Wed, Dec 3
Lufthansa Logo
10:55 pm - 5:10 pmIAD-CGN
12h 15m1 stop
Lufthansa Logo
7:40 pm - 8:05 pmCGN-IAD
30h 25m1 stop
$625Lufthansa
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Mon, Nov 17 - Tue, Dec 2
United Airlines Logo
5:38 pm - 12:50 pmIAD-CGN
13h 12m2 stops
United Airlines Logo
9:10 am - 8:29 pmCGN-IAD
17h 19m2 stops
$633United Airlines
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Wed, Feb 11 - Sun, Feb 22
United Airlines Logo
5:38 pm - 12:50 pmIAD-CGN
13h 12m2 stops
United Airlines Logo
1:35 pm - 11:21 pmCGN-IAD
15h 46m2 stops
$638United Airlines
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Wed, Feb 11 - Tue, Feb 24
Lufthansa Logo
10:20 pm - 6:55 pmIAD-CGN
14h 35m1 stop
Lufthansa Logo
12:55 pm - 7:25 pmCGN-IAD
12h 30m1 stop
$683Lufthansa
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Fri, Apr 3 - Tue, Apr 7

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
Feb 11
IAD6:20 pmWashington, D.C. Dulles Intl
15h 50m
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
$528
Find similar
British Airways
Feb 11
IAD6:20 pmWashington, D.C. Dulles Intl
15h 50m
1 stop
CGN4:10 pmCologne Köln/Bonn
Feb 22
CGN4:35 pmCologne Köln/Bonn
33h 20m
1 stop
IAD7:55 pmWashington, D.C. Dulles Intl
$553
Find similar
British Airways
Feb 11
IAD9:45 pmWashington, D.C. Dulles Intl
12h 25m
1 stop
CGN4:10 pmCologne Köln/Bonn
Feb 22
CGN4:35 pmCologne Köln/Bonn
29h 00m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$556
Find similar

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

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Cologne flight tickets
Air Canada
Dec 2
IAD4:30 pmWashington, D.C. Dulles Intl
13h 40m
2 stops
CGN12:10 pmCologne Köln/Bonn
Dec 9
CGN8:40 amCologne Köln/Bonn
18h 19m
2 stops
IAD8:59 pmWashington, D.C. Dulles Intl
$612
Find similar
Air Canada
Nov 18
IAD4:30 pmWashington, D.C. Dulles Intl
13h 40m
2 stops
CGN12:10 pmCologne Köln/Bonn
Dec 3
CGN6:45 amCologne Köln/Bonn
20h 14m
2 stops
IAD8:59 pmWashington, D.C. Dulles Intl
$621
Find similar
Air Canada
Nov 17
IAD4:30 pmWashington, D.C. Dulles Intl
14h 20m
2 stops
CGN12:50 pmCologne Köln/Bonn
Dec 2
CGN6:45 amCologne Köln/Bonn
19h 41m
2 stops
IAD8:26 pmWashington, D.C. Dulles Intl
$662
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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 October 20, 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 2/11

6:20 pm-4:10 pm

1 stop15h 50m

Cologne Köln/Bonn

Tue 2/24

5:05 pm-3:35 pm

1 stop28h 30m

$528

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 2/11

6:20 pm-4:10 pm

1 stop15h 50m

Cologne Köln/Bonn

Sun 2/22

4:35 pm-7:55 pm

1 stop33h 20m

$553

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 12/2

9:45 am-12:10 pm

2 stops20h 25m

Cologne Köln/Bonn

Tue 12/9

7:40 pm-8:05 pm

1 stop30h 25m

$598

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 12/2

4:30 pm-12:10 pm

2 stops13h 40m

Cologne Köln/Bonn

Tue 12/9

8:40 am-8:59 pm

2 stops18h 19m

$612

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Mon 11/17

9:00 am-12:10 pm

2 stops21h 10m

Cologne Köln/Bonn

Tue 12/2

7:40 pm-8:05 pm

1 stop30h 25m

$615

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 11/18

4:30 pm-12:10 pm

2 stops13h 40m

Cologne Köln/Bonn

Wed 12/3

6:45 am-8:59 pm

2 stops20h 14m

$621

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Mon 11/17

10:55 pm-5:10 pm

1 stop12h 15m

Cologne Köln/Bonn

Tue 12/2

7:40 pm-8:05 pm

1 stop30h 25m

$625

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 2/11

5:38 pm-12:50 pm

2 stops13h 12m

Cologne Köln/Bonn

Sun 2/22

9:10 am-8:29 pm

2 stops17h 19m

$633

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 2/11

5:38 pm-12:50 pm

2 stops13h 12m

Cologne Köln/Bonn

Tue 2/24

1:35 pm-11:21 pm

2 stops15h 46m

$638

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Fri 4/3

10:20 pm-6:55 pm

1 stop14h 35m

Cologne Köln/Bonn

Tue 4/7

12:55 pm-7:25 pm

1 stop12h 30m

$683

Flights are sorted by cheapest round-trip flights 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 $567, 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 September is also very affordable. Most momondo users find prices during this month for around $640.

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 39% 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

Direct flights

None
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 9h 50m 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 $621Free CancellationRating
6.7
7,461 reviews
Search British Airways flights
LufthansaPriceFrom $678Free CancellationRating
6.8
7,508 reviews
Search Lufthansa flights
United AirlinesPriceFrom $757Free CancellationRating
7.4
8,991 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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