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Dulles Intl

$514+ 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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — IAD
Apr 7 — Apr 141
Tue 4/7
Tue 4/14
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 March 8, 2026.

This Flighttix deal was found by Cheapflights users on 3/4. 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.
Sun 3/158:35 pm
CGN
-
IAD
1 stop24h 05m
Multiple Airlines
Sun 3/2211:55 pm
IAD
-
CGN
1 stop12h 15m
Multiple Airlines
Deal found 3/4$601
This United Airlines deal was found by Cheapflights users on 3/3. 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 4/161:05 pm
CGN
-
IAD
1 stop12h 20m
United Airlines
Mon 4/2010:20 pm
IAD
-
CGN
1 stop13h 00m
United Airlines
Deal found 3/3$613
This United Airlines deal was found by Cheapflights users on 3/4. 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.
Mon 5/111:05 pm
CGN
-
IAD
2 stops17h 28m
United Airlines
Sat 5/2310:20 pm
IAD
-
CGN
1 stop15h 10m
United Airlines
Deal found 3/4$619
This Billigflug deal was found by Cheapflights users on 3/4. 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.
Mon 3/168:20 pm
CGN
-
IAD
1 stop24h 20m
Multiple Airlines
Sun 3/2211:55 pm
IAD
-
CGN
1 stop12h 15m
Multiple Airlines
Deal found 3/4$624
This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
Tue 4/211:05 pm
CGN
-
IAD
1 stop12h 20m
Lufthansa
Tue 4/2810:20 pm
IAD
-
CGN
1 stop13h 00m
Lufthansa
Deal found 3/7$629
This Expedia deal was found by Cheapflights users on 3/5. 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 4/91:05 pm
CGN
-
IAD
1 stop12h 20m
Lufthansa
Thu 4/1610:20 pm
IAD
-
CGN
1 stop13h 20m
Lufthansa
Deal found 3/5$633
This Flighttix deal was found by Cheapflights users on 3/7. 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.
Mon 4/138:40 pm
CGN
-
IAD
1 stop23h 55m
Multiple Airlines
Sun 4/1910:20 pm
IAD
-
CGN
1 stop15h 10m
Multiple Airlines
Deal found 3/7$634
This Flighttix deal was found by Cheapflights users on 3/5. 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.
Thu 4/168:40 pm
CGN
-
IAD
1 stop23h 55m
Multiple Airlines
Mon 4/2010:20 pm
IAD
-
CGN
1 stop15h 10m
Multiple Airlines
Deal found 3/5$635
This Flighttix deal was found by Cheapflights users on 3/8. 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.
Thu 4/98:40 pm
CGN
-
IAD
1 stop23h 55m
Multiple Airlines
Mon 4/1310:20 pm
IAD
-
CGN
1 stop15h 10m
Multiple Airlines
Deal found 3/8$637
This Flighttix deal was found by Cheapflights users on 3/5. 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.
Thu 3/269:10 am
CGN
-
IAD
1 stop16h 55m
Lufthansa
Thu 4/210:20 pm
IAD
-
CGN
1 stop15h 10m
Lufthansa
Deal found 3/5$640

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 March 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$613
(United Airlines)

One-way from

$514
(Kiwi.com)

Popular in

March

Cheapest in

April

Average price

$917
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
High demand for flights, 16% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 8, 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

Thu 4/16

8:30 am-7:25 pm

1 stop16h 55m

Washington, D.C. Dulles Intl

Mon 4/20

10:20 pm-5:20 pm

1 stop13h 00m

$613

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Mon 5/11

1:05 pm-12:33 am

2 stops17h 28m

Washington, D.C. Dulles Intl

Sat 5/23

10:20 pm-7:30 pm

1 stop15h 10m

$619
Quickest round-trip

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Tue 4/7

1:05 pm-7:25 pm

1 stop12h 20m

Washington, D.C. Dulles Intl

Fri 4/17

10:20 pm-5:40 pm

1 stop13h 20m

$648

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Fri 4/17

8:30 am-7:25 pm

1 stop16h 55m

Washington, D.C. Dulles Intl

Sun 4/19

1:10 pm-12:25 pm

2 stops17h 15m

$648

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Thu 4/9

8:30 am-7:25 pm

1 stop16h 55m

Washington, D.C. Dulles Intl

Sun 4/19

1:10 pm-12:25 pm

2 stops17h 15m

$648

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Fri 4/10

1:05 pm-12:32 am

2 stops17h 27m

Washington, D.C. Dulles Intl

Thu 4/16

10:20 pm-5:40 pm

1 stop13h 20m

$653
Cheapest one-way

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Mon 7/20

6:50 pm-7:35 pm

2 stops30h 45m

$638
Quickest one-way

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Mon 7/6

1:05 pm-7:25 pm

1 stop12h 20m

$831

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Mon 7/20

7:10 pm-11:35 am

1 stop22h 25m

$971

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Fri 4/3

10:25 am-7:50 pm

1 stop15h 25m

$1,045

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 16 resultsSorted by cheapest first
1
2
  • 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 $583). 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.

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 20m. Fly via United Airlines 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.

  • 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 $583). 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
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park

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