HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$428+ Cheap flights from Cologne (CGN) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — IAD
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Cologne to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$567
(British Airways)

One-way from

$428
(Kiwi.com)

Popular in

August

Cheapest in

April

Average price

$756
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
One-way flight from Cologne Köln/Bonn to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find 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 October 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/269:10 amCGN - IAD
1 stop12h 25mLufthansa
Sun 11/210:55 pmIAD - CGN
1 stop12h 15mLufthansa
Deal found 10/15$572
This Flysmarter deal was found by Cheapflights users on 10/15. 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 11/141:20 pmCGN - IAD
1 stop12h 45mLufthansa
Sun 11/2310:55 pmIAD - CGN
1 stop14h 40mLufthansa
Deal found 10/15$584
This Flighttix deal was found by Cheapflights users on 10/15. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:45 amCGN - IAD
2 stops20h 09mAir Canada
Sun 11/234:30 pmIAD - CGN
2 stops18h 40mAir Canada
Deal found 10/15$588
This Air Canada deal was found by Cheapflights users on 10/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:45 amCGN - IAD
2 stops20h 09mAir Canada
Sun 11/239:45 amIAD - CGN
2 stops25h 25mAir Canada
Deal found 10/15$589
This United Airlines deal was found by Cheapflights users on 10/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/131:35 pmCGN - IAD
1 stop12h 30mUnited Airlines
Sun 11/2310:55 pmIAD - CGN
1 stop12h 15mUnited Airlines
Deal found 10/15$591
This Air Canada deal was found by Cheapflights users on 10/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:45 amCGN - IAD
2 stops20h 09mAir Canada
Sat 11/2210:11 pmIAD - CGN
2 stops36h 59mAir Canada
Deal found 10/15$595
This Austrian Airlines deal was found by Cheapflights users on 10/15. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:50 amCGN - IAD
2 stops39h 40mAustrian Airlines
Tue 11/45:15 pmIAD - CGN
2 stops35h 20mAustrian Airlines
Deal found 10/15$604
This Gotogate deal was found by Cheapflights users on 10/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:40 amCGN - IAD
2 stops17h 19mMultiple Airlines
Tue 11/46:00 pmIAD - CGN
1 stop19h 35mMultiple Airlines
Deal found 10/15$612
This Billigflug deal was found by Cheapflights users on 10/16. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/612:40 pmCGN - IAD
1 stop13h 15mBritish Airways
Sun 12/149:45 pmIAD - CGN
1 stop30h 20mBritish Airways
Deal found 10/16$631
This Billigflug deal was found by Cheapflights users on 10/15. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:40 pmCGN - IAD
1 stop30h 25mLufthansa
Tue 11/45:40 pmIAD - CGN
1 stop12h 55mLufthansa
Deal found 10/15$635

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 October 16, 2025.
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

Cologne

Fly to

Dulles Intl

Route

Depart

Return

Price

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Thu 2/19

5:05 pm-3:35 pm

1 stop28h 30m

Washington, D.C. Dulles Intl

Sun 2/22

6:20 pm-4:30 pm

1 stop16h 10m

$567

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Sun 10/26

9:10 am-4:35 pm

1 stop12h 25m

Washington, D.C. Dulles Intl

Sun 11/2

10:55 pm-5:10 pm

1 stop12h 15m

$572

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Fri 11/14

1:20 pm-8:05 pm

1 stop12h 45m

Washington, D.C. Dulles Intl

Sun 11/23

10:55 pm-7:35 pm

1 stop14h 40m

$584

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Thu 11/13

1:35 pm-8:05 pm

1 stop12h 30m

Washington, D.C. Dulles Intl

Sun 11/23

10:55 pm-5:10 pm

1 stop12h 15m

$591

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Thu 11/13

6:45 am-8:54 pm

2 stops20h 09m

Washington, D.C. Dulles Intl

Sat 11/22

10:11 pm-5:10 pm

2 stops36h 59m

$595

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Fri 10/31

8:40 am-8:59 pm

2 stops17h 19m

Washington, D.C. Dulles Intl

Tue 11/4

6:00 pm-7:35 pm

1 stop19h 35m

$612

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Fri 10/31

7:40 pm-9:05 pm

1 stop30h 25m

Washington, D.C. Dulles Intl

Tue 11/4

5:40 pm-12:35 pm

1 stop12h 55m

$635

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Sat 12/6

9:10 am-3:35 pm

1 stop12h 25m

Washington, D.C. Dulles Intl

Sun 12/14

5:40 pm-5:10 pm

1 stop17h 30m

$640

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Sat 12/6

12:40 pm-7:55 pm

1 stop13h 15m

Washington, D.C. Dulles Intl

Sun 12/14

9:45 pm-10:05 am

1 stop30h 20m

$645

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Sat 11/1

8:25 pm-4:15 pm

3 stops48h 50m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 13 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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.

Cheapflights Insights

Everything you need to know about your flight from Cologne to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Cologne to Washington, D.C. Dulles Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Cologne to Washington, D.C. Dulles Intl Airport (average of $237). Flying from Cologne to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Cologne to Washington, D.C. Dulles Intl Airport?

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 12h 25m. Fly via British Airways or Lufthansa to get the fastest option. There are 3986 mi between Cologne and Washington, D.C. Dulles Intl Airport. This flight may include one or multiple stops.

  • 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.

  • What is the cheapest month to book a flight from Cologne to Washington, D.C. Dulles Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Cologne to Washington, D.C. Dulles Intl Airport (average of $237). Flying from Cologne to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Woodbridge
Arlington
Tysons
Springfield
Silver Spring
Hanover
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Cologne to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Frankfurt to Dulles Intl flights
Frankfurt to Baltimore flights
Frankfurt to Reagan-National flights
Munich to Dulles Intl flights
Munich to Reagan-National flights
Munich to Baltimore flights
Berlin to Dulles Intl flights
Berlin to Baltimore flights
Berlin to Reagan-National flights
Frankfurt-Hahn to Baltimore flights
Duesseldorf Intl to Dulles Intl flights
Duesseldorf Intl to Baltimore flights
Hamburg to Dulles Intl flights
Duesseldorf Intl to Reagan-National flights
Nuremberg to Dulles Intl flights
Hamburg to Baltimore flights
Hamburg to Reagan-National flights
Nuremberg to Baltimore flights
Nuremberg to Reagan-National flights
Stuttgart to Dulles Intl flights
Stuttgart to Reagan-National flights
Stuttgart to Baltimore flights
Cologne to Baltimore flights
Bremen to Dulles Intl flights
Hannover to Dulles Intl flights
Hannover to Baltimore flights
Leipzig to Dulles Intl flights
Paderborn to Dulles Intl flights
Dortmund to Dulles Intl flights
Leipzig to Reagan-National flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.