Cheap Flights from Copenhagen (RKE) to Washington (IAD)

Popular airlines from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD)

Frequently asked questions

How much does a flight from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD) cost?
Lock in a cheap one-way flight or cheap return flight from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from RKE to IAD is , when there's less demand. Off-peak months are generally when better flight deals are available between these airports.
Which airlines fly direct from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD)?
There's no direct route from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD). However, you can find other airports that offer nonstop flights. Hop on your plane at Kastrup Airport (CPH) and head straight to Washington without a layover.
What is the cheapest airline that flies from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest RKE to IAD flight.
How many flights per day from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD)?
There are no daily nonstop flights departing from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from RKE to IAD?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD)?
Choose a flight from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**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 Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your ticket from RKE to IAD shortly before your getaway is usually more expensive. But if you're flexible with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a RKE to IAD flight and hotel package?
Booking a RKE to IAD flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of stays and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Copenhagen (RKE-Roskilde) to Washington Dulles Intl. Airport (IAD)?
If you reserved your RKE to IAD flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Travel information

Origin airport
Roskilde
Destination airport
Washington Dulles Intl.
Distance
4044 mi

Book with confidence

Book with confidence

Copenhagen to Washington Flights

The cheapest times to fly from Copenhagen 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 Copenhagen to Washington are during the month of . You can find some of the cheapest flights from Copenhagen to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Copenhagen to Washington

Sunday is one of the best days to book for cheap flights from Copenhagen 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 Copenhagen 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 Copenhagen to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Copenhagen 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 Copenhagen 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.

 

Copenhagen to Washington Flights

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*Available to One Key members.