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Dulles Intl

$693+ Cheap flights from Cologne (CGN) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — IAD
Aug 12 — Aug 191
Wed 8/12
Wed 8/19
1 adult, Economy
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Cheap flight deals from Cologne to Dulles Intl

Cheapest flights from Cologne to Dulles Intl
Explore the most affordable flight options available from Cologne to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 13, 2026.

This Expedia deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:10 pm
CGN
-
IAD
1 stop29h 15m
Lufthansa
Mon 9/710:20 pm
IAD
-
CGN
1 stop13h 00m
Lufthansa
Deal found 7/13$693
This Expedia deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:10 pm
CGN
-
IAD
1 stop29h 15m
Lufthansa
Tue 9/110:20 pm
IAD
-
CGN
1 stop13h 00m
Lufthansa
Deal found 7/11$695
This Flysmarter deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:40 pm
CGN
-
IAD
1 stop23h 55m
Multiple Airlines
Tue 9/13:45 pm
IAD
-
CGN
2 stops14h 40m
Multiple Airlines
Deal found 7/12$698
This Expedia deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:40 pm
CGN
-
IAD
1 stop23h 20m
Multiple Airlines
Mon 9/75:55 pm
IAD
-
CGN
2 stops12h 30m
Multiple Airlines
Deal found 7/13$707

Find flight deals from Cologne to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Cologne (CGN) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$681
(Expedia)

Popular in

July

Cheapest in

September

Average price

$1,017
Provider with most accurate pricing for Cologne Köln/Bonn-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cologne Köln/Bonn-Washington, D.C. Dulles Intl flights.
Search Deals
From Cologne Köln/Bonn to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cologne to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated July 13, 2026.
Use the filters below to find and compare flights from Cologne to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Fri 8/28

8:10 pm-7:25 pm

1 stop29h 15m

Washington, D.C. Dulles Intl

Tue 9/1

3:45 pm-5:20 pm

2 stops19h 35m

$705

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Fri 8/28

6:25 pm-7:25 pm

1 stop31h 00m

Washington, D.C. Dulles Intl

Tue 9/1

10:20 pm-5:20 pm

1 stop13h 00m

$733

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Sun 1/3

8:20 pm-2:10 pm

1 stop23h 50m

Washington, D.C. Dulles Intl

Thu 6/17

10:20 pm-7:30 pm

1 stop15h 10m

$769

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Mon 1/4

9:20 am-8:10 pm

2 stops16h 50m

Washington, D.C. Dulles Intl

Fri 6/18

10:20 pm-6:55 pm

1 stop14h 35m

$776
Quickest round-trip

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Thu 9/3

8:30 am-4:05 pm

2 stops13h 35m

Washington, D.C. Dulles Intl

Mon 9/7

5:55 pm-12:25 pm

2 stops12h 30m

$783

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Wed 11/4

6:10 pm-12:45 pm

1 stop24h 35m

Washington, D.C. Dulles Intl

Sun 11/8

9:20 pm-10:30 am

1 stop31h 10m

$883

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Wed 11/4

6:45 am-4:45 pm

1 stop16h 00m

Washington, D.C. Dulles Intl

Sun 11/8

10:55 pm-5:15 pm

1 stop12h 20m

$911

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Thu 9/3

6:20 am-3:30 pm

1 stop15h 10m

Washington, D.C. Dulles Intl

Mon 9/7

10:20 pm-5:20 pm

1 stop13h 00m

$911

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Fri 8/28

6:20 am-4:45 pm

1 stop16h 25m

Washington, D.C. Dulles Intl

Tue 9/1

10:20 pm-5:20 pm

1 stop13h 00m

$912
Cheapest one-way
Quickest one-way

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Mon 8/3

6:20 am-2:20 pm

2 stops14h 00m

$1,327

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/12

Showing 1-10 of 13 resultsSorted by cheapest first
1
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Compare providers for flights from Cologne to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cologne to Dulles Intl in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Cologne-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cologne-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cologne-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cologne-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cologne-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Cologne to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Cologne with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Cologne to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Cologne to Washington, D.C. Dulles Intl?

    Cologne Köln/Bonn (CGN) is the airport you will fly out of if you book a flight from Cologne to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Köln/Bonn; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Cologne airport to Washington, D.C. Dulles Intl. It is only a 9.5 mi journey to Köln/Bonn (CGN) from Cologne’s city center.

  • How long is the flight from Cologne to Washington, D.C. Dulles Intl Airport?

    There are many flights that can get you from Cologne to Washington, D.C. Dulles Intl Airport in 31h. Fly via Lufthansa to get the fastest option. There are 3986 mi between Cologne and Washington, D.C. Dulles Intl Airport.

  • Can I find deals for flights from Cologne to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Cologne to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cologne to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cologne to Dulles Intl.

  • Can I find deals for business class flights from Cologne to Dulles Intl?

    Yes. Cheapflights offers flight deals from Cologne to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Manassas
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Hunt Valley
Cordova

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