What are the cheapest airlines flying from Cologne to Washington, D.C. Dulles Intl Airport round-trip?

Cheapflights users have booked flights from Cologne to Washington, D.C. Dulles Intl Airport round-trip from $505. Another airline that can offer you cheap pricing is British Airways. You may be able to fly from Cologne to Washington, D.C. Dulles Intl Airport for 34% less than the average price by searching for these airlines.

What is the cheapest day to fly from Cologne to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Cologne to Washington, D.C. Dulles Intl Airport flight should consider departing on Saturday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

February can be a great time to fly to Washington, D.C. Dulles Intl Airport from Cologne with a flight ticket averaging about $656. Cheapflights users have found deals in the month of February for as cheap as $486. The most expensive prices can be found in the month of August.

What is the cheapest time of day to fly from CGN to IAD?

A simple way to save on the total cost of your ticket is to fly from Cologne to Washington, D.C. Dulles Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight at noon.

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.

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.

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.

$495+ Save on Flights from Cologne to Washington, D.C. Dulles Intl Airport

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1. Tell us where you want to go

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Cheap flight deals from Cologne to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$505 (United Airlines)
Popular in	July
Cheapest in	November
Average price	$623

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. 23% potential increase in price ($234 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($46 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 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 March 25, 2025.

Thu 4/310:15 amCGN - IAD

1 stop15h 55mAmerican Airlines

Mon 4/75:40 pmIAD - CGN

1 stop14h 40mAmerican Airlines

Deal found 3/24

$495

Thu 4/310:15 amCGN - IAD

1 stop15h 55mBritish Airways

Mon 4/75:40 pmIAD - CGN

1 stop14h 40mBritish Airways

Deal found 3/24

$496

Wed 4/96:05 amCGN - IAD

1 stop14h 55mUnited Airlines

Sun 4/1311:05 pmIAD - CGN

1 stop12h 05mUnited Airlines

Deal found 3/24

$505

Thu 4/37:40 amCGN - IAD

2 stops19h 35mAir Canada

Mon 4/73:55 pmIAD - CGN

2 stops19h 10mAir Canada

Deal found 3/24

$574

Thu 4/37:40 amCGN - IAD

2 stops19h 35mMultiple Airlines

Mon 4/711:05 pmIAD - CGN

1 stop10h 45mMultiple Airlines

Deal found 3/24

$576

Thu 4/38:35 amCGN - IAD

2 stops18h 41mLufthansa

Mon 4/711:05 pmIAD - CGN

1 stop10h 45mLufthansa

Deal found 3/24

$620

Thu 4/39:35 amCGN - IAD

2 stops16h 15mAustrian Airlines

Mon 4/75:25 pmIAD - CGN

1 stop20h 15mAustrian Airlines

Deal found 3/24

$677

Best flights from Cologne to Dulles Intl
Discover carefully curated flight deals from Cologne to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 25, 2025.

Wed 4/96:05 amCGN - IAD

1 stop14h 55mUnited Airlines

Sun 4/1311:05 pmIAD - CGN

1 stop12h 05mUnited Airlines

Deal found 3/24

$505

Wed 4/910:15 pmCGN - IAD

1 stop23h 35mBritish Airways

Sun 4/135:40 pmIAD - CGN

1 stop10h 05mBritish Airways

Deal found 3/23

$1,316

Wed 4/97:40 amCGN - IAD

2 stops13h 33mMultiple Airlines

Sun 4/1312:40 pmIAD - CGN

2 stops16h 30mMultiple Airlines

Deal found 3/23

$1,873

Last-minute flights from Cologne to Dulles Intl
Discover last-minute flight deals from Cologne to Dulles Intl. Data last updated March 25, 2025 and is based on user searches.

Thu 4/310:15 amCGN - IAD

1 stop15h 55mAmerican Airlines

Mon 4/75:40 pmIAD - CGN

1 stop14h 40mAmerican Airlines

Deal found 3/24

$495

Thu 4/310:15 amCGN - IAD

1 stop15h 55mBritish Airways

Mon 4/75:40 pmIAD - CGN

1 stop14h 40mBritish Airways

Deal found 3/24

$496

Thu 4/37:40 amCGN - IAD

2 stops19h 35mAir Canada

Mon 4/73:55 pmIAD - CGN

2 stops19h 10mAir Canada

Deal found 3/24

$574

Thu 4/37:40 amCGN - IAD

2 stops19h 35mMultiple Airlines

Mon 4/711:05 pmIAD - CGN

1 stop10h 45mMultiple Airlines

Deal found 3/24

$576

Thu 4/38:35 amCGN - IAD

2 stops18h 41mLufthansa

Mon 4/711:05 pmIAD - CGN

1 stop10h 45mLufthansa

Deal found 3/24

$620

Thu 4/39:35 amCGN - IAD

2 stops16h 15mAustrian Airlines

Mon 4/75:25 pmIAD - CGN

1 stop20h 15mAustrian Airlines

Deal found 3/24

$677

Thu 4/36:05 amCGN - IAD

2 stops15h 20mUnited Airlines

Mon 4/73:30 pmIAD - CGN

2 stops13h 40mUnited Airlines

Deal found 3/24

$841

Wed 4/96:05 amCGN - IAD

1 stop14h 55mUnited Airlines

Sun 4/1311:05 pmIAD - CGN

1 stop12h 05mUnited Airlines

Deal found 3/24

$505

One-way flights from Cologne to Dulles Intl
Search for one-way flight options from Cologne to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated March 25, 2025.

Mon 9/16:20 amCGN - IAD

2 stops39h 00mMultiple Airlines

Deal found 3/24

$538

Cheapflights Fare Finder

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

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Wed 4/9

6:05 am-3:00 pm

1 stop14h 55m

Washington, D.C. Dulles Intl

Sun 4/13

11:05 pm-5:10 pm

1 stop12h 05m

$505

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Wed 4/9

10:15 pm-3:50 pm

1 stop23h 35m

Washington, D.C. Dulles Intl

Sun 4/13

5:40 pm-9:45 am

1 stop10h 05m

$1,316

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Wed 4/9

7:40 am-3:13 pm

2 stops13h 33m

Washington, D.C. Dulles Intl

Sun 4/13

12:40 pm-11:10 am

2 stops16h 30m

$1,873

CologneWashington, D.C.

CGN - IAD

CGNIAD

Cologne Köln/Bonn

Mon 9/1

6:20 am-3:20 pm

2 stops39h 00m

$538

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Compare providers for flights from Cologne to Dulles Intl

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 March.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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, August is the cheapest month in which you can book a flight from Cologne to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Cologne to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $387). 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.

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with United Airlines and British Airways from Cologne to Washington, D.C. to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,605 reviews

Reviews

1 / 20

4.0

Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!

United Airlines

7.4

Good

8,605 reviews

United Airlines

7.4

Good

8,605 reviews

Reviews

1 / 20

4.0

Okay

Patti,Feb 2025

FCO - EWR

British Airways

6.6

Okay

6,712 reviews

United Airlines

7.4

Good

8,605 reviews

Reviews

1 / 20

4.0

Okay

Patti,Feb 2025

FCO - EWR

Related info for your journey

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.
What are the cheapest airlines flying from Cologne to Washington, D.C. Dulles Intl Airport round-trip?
Cheapflights users have booked flights from Cologne to Washington, D.C. Dulles Intl Airport round-trip from $505. Another airline that can offer you cheap pricing is British Airways. You may be able to fly from Cologne to Washington, D.C. Dulles Intl Airport for 34% less than the average price by searching for these airlines.
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, August is the cheapest month in which you can book a flight from Cologne to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Cologne to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $387). 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.

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$495+ 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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Cologne to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Cologne to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Cologne to Dulles Intl

Cheapest flights from Cologne to Dulles IntlExplore 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 25, 2025.

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 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cologne to Washington, D.C. Dulles Intl Airport that are best for you.

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 March.

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.

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?

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with United Airlines and British Airways from Cologne to Washington, D.C. to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest airlines flying from Cologne to Washington, D.C. Dulles Intl Airport round-trip?

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

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

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

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

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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 25, 2025.