$382 Cheap Flights from Cologne (CGN) to Washington (IAD)

View $382 flight on Fri, Jun 19, 2026Opens in a new window

Popular airlines from Cologne - Bonn Airport (CGN) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Cologne to Washington (CGN-IAD)

Prices were available within the past 7 days and start at $382 for one-way flights and $594 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Austrian Airlines
Tue, Nov 18 - Sun, Nov 23
CGN
Cologne
IAD
Washington
$594 Roundtrip, found 6 days ago
$594
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Tue, Nov 18 from Cologne to Washington, returning Sun, Nov 23, priced at $594 found 6 days ago
Air Canada
Thu, Nov 20 - Mon, Nov 24
CGN
Cologne
IAD
Washington
$595 Roundtrip, found 3 days ago
$595
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Nov 20 from Cologne to Washington, returning Mon, Nov 24, priced at $595 found 3 days ago
Air Canada
Thu, Nov 20 - Mon, Nov 24
CGN
Cologne
IAD
Washington
$596 Roundtrip, found 3 days ago
$596
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Nov 20 from Cologne to Washington, returning Mon, Nov 24, priced at $596 found 3 days ago
Air Canada
Tue, Nov 18 - Sun, Nov 23
CGN
Cologne
IAD
Washington
$597 Roundtrip, found 6 days ago
$597
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Nov 18 from Cologne to Washington, returning Sun, Nov 23, priced at $597 found 6 days ago
Austrian Airlines
Tue, Nov 18 - Sun, Nov 23
CGN
Cologne
IAD
Washington
$601 Roundtrip, found 6 days ago
$601
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Tue, Nov 18 from Cologne to Washington, returning Sun, Nov 23, priced at $601 found 6 days ago
Air Canada
Thu, Nov 20 - Mon, Nov 24
CGN
Cologne
IAD
Washington
$601 Roundtrip, found 3 days ago
$601
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Nov 20 from Cologne to Washington, returning Mon, Nov 24, priced at $601 found 3 days ago
Lufthansa
Mon, Oct 27 - Mon, Nov 3
CGN
Cologne
IAD
Washington
$602 Roundtrip, found 19 hours ago
$602
Roundtrip
found 19 hours ago
Select Lufthansa flight, departing Mon, Oct 27 from Cologne to Washington, returning Mon, Nov 3, priced at $602 found 19 hours ago
Air Canada
Tue, Nov 18 - Sun, Nov 23
CGN
Cologne
IAD
Washington
$602 Roundtrip, found 6 days ago
$602
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Nov 18 from Cologne to Washington, returning Sun, Nov 23, priced at $602 found 6 days ago
United
Fri, Oct 24 - Sun, Nov 2
CGN
Cologne
IAD
Washington
$615 Roundtrip, found 3 days ago
$615
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 24 from Cologne to Washington, returning Sun, Nov 2, priced at $615 found 3 days ago
British Airways
Wed, Dec 10 - Tue, Dec 23
CGN
Cologne
IAD
Washington
$729 Roundtrip, found 4 days ago
$729
Roundtrip
found 4 days ago
Select British Airways flight, departing Wed, Dec 10 from Cologne to Washington, returning Tue, Dec 23, priced at $729 found 4 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $692
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $692

Frequently asked questions

How much does a flight from Cologne - Bonn Airport (CGN) to Washington Dulles Intl. Airport (IAD) cost?
Secure a cheap one-way flight from $382 or cheap return flight from $594 from Cologne - Bonn Airport (CGN) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Cologne - Bonn Airport (CGN) to Washington Dulles Intl. Airport (IAD)?
Planning your trip for November may help you find better deals, as it's the cheapest month for flights between CGN and IAD. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Cologne - Bonn Airport (CGN) to Washington Dulles Intl. Airport (IAD)?
To find the cheapest airline that'll fly you from CGN to IAD, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Cologne - Bonn Airport (CGN) to Washington Dulles Intl. Airport (IAD)?
You'll need to catch a flight with a layover when traveling from Cologne - Bonn Airport (CGN) to Washington Dulles Intl. Airport (IAD). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from CGN to IAD?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cologne - Bonn Airport (CGN) to Washington Dulles Intl. Airport (IAD)?
To arrive at Washington Dulles Intl. Airport (IAD) without delays, book a flight that leaves Cologne - Bonn Airport (CGN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cologne - Bonn Airport (CGN) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your flight from CGN to IAD just before your getaway is typically more expensive. But if there's some wiggle room with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a CGN to IAD flight and hotel package?
You'll typically save money by booking a CGN to IAD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your ideal flights and accommodations, consider adding extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Cologne - Bonn Airport (CGN) to Washington Dulles Intl. Airport (IAD)?
If you booked your CGN to IAD flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Origin airport
Cologne - Bonn
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, Austrian Airlines, British Airways, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$593
Distance
3986 mi

Book with confidence

Cologne to Washington Flights

The cheapest times to fly from Cologne to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cologne to Washington are during the month of November. You can find some of the cheapest flights from Cologne to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cologne to Washington

Sunday is one of the best days to book for cheap flights from Cologne to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cologne to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cologne to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $382 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cologne to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cologne to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Cologne to Washington Flights

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*Available to One Key members.