S$439 Cheap Flights from Washington to Copenhagen

View S$439 flight on Thu, 16 Oct, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Copenhagen Airport, Kastrup (CPH)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Washington to Copenhagen (IAD-CPH)

Prices were available within the past 7 days and start at S$439 for one-way flights and S$790 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Thu, 16 Oct - Sun, 26 Oct
IAD
Washington
CPH
Copenhagen
S$790 Return, found 5 days ago
S$790
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Thu, 16 Oct from Washington to Copenhagen, returning Sun, 26 Oct, priced at S$790 found 5 days ago
United
Thu, 16 Oct - Sun, 26 Oct
IAD
Washington
CPH
Copenhagen
S$804 Return, found 5 days ago
S$804
Return
found 5 days ago
Select United flight, departing Thu, 16 Oct from Washington to Copenhagen, returning Sun, 26 Oct, priced at S$804 found 5 days ago
United
Thu, 16 Oct - Sun, 26 Oct
IAD
Washington
CPH
Copenhagen
S$804 Return, found 5 days ago
S$804
Return
found 5 days ago
Select United flight, departing Thu, 16 Oct from Washington to Copenhagen, returning Sun, 26 Oct, priced at S$804 found 5 days ago
United
Thu, 16 Oct - Sun, 26 Oct
IAD
Washington
CPH
Copenhagen
S$808 Return, found 5 days ago
S$808
Return
found 5 days ago
Select United flight, departing Thu, 16 Oct from Washington to Copenhagen, returning Sun, 26 Oct, priced at S$808 found 5 days ago
United
Thu, 16 Oct - Sun, 26 Oct
IAD
Washington
CPH
Copenhagen
S$809 Return, found 5 days ago
S$809
Return
found 5 days ago
Select United flight, departing Thu, 16 Oct from Washington to Copenhagen, returning Sun, 26 Oct, priced at S$809 found 5 days ago
Delta
Fri, 22 Aug - Fri, 29 Aug
IAD
Washington
CPH
Copenhagen
S$810 Return, found 1 day ago
S$810
Return
found 1 day ago
Select Delta flight, departing Fri, 22 Aug from Washington to Copenhagen, returning Fri, 29 Aug, priced at S$810 found 1 day ago
United
Thu, 16 Oct - Sun, 26 Oct
IAD
Washington
CPH
Copenhagen
S$812 Return, found 5 days ago
S$812
Return
found 5 days ago
Select United flight, departing Thu, 16 Oct from Washington to Copenhagen, returning Sun, 26 Oct, priced at S$812 found 5 days ago
Lufthansa
Thu, 16 Oct - Sun, 26 Oct
IAD
Washington
CPH
Copenhagen
S$831 Return, found 5 days ago
S$831
Return
found 5 days ago
Select Lufthansa flight, departing Thu, 16 Oct from Washington to Copenhagen, returning Sun, 26 Oct, priced at S$831 found 5 days ago
Swiss International Air Lines
Thu, 16 Oct - Sun, 26 Oct
IAD
Washington
CPH
Copenhagen
S$832 Return, found 5 days ago
S$832
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Thu, 16 Oct from Washington to Copenhagen, returning Sun, 26 Oct, priced at S$832 found 5 days ago
Air France
Fri, 22 Aug - Fri, 29 Aug
IAD
Washington
CPH
Copenhagen
S$900 Return, found 1 day ago
S$900
Return
found 1 day ago
Select Air France flight, departing Fri, 22 Aug from Washington to Copenhagen, returning Fri, 29 Aug, priced at S$900 found 1 day ago

Find the cheapest month to fly from Washington (IAD) to Copenhagen (CPH)

March is typically the cheapest month to fly

From S$344 - S$886 per traveller.

Graph displaying average flight prices per month

Washington to Copenhagen route information
Origin airport
Washington Dulles Intl.
Destination airport
Kastrup
Airlines serving
Air France, Austrian Airlines, British Airways, Delta, Iberia, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Return price
S$790
Distance
6498 km
Average flight time
7 hours 50 mins

Perfect flights from Washington to Copenhagen

Your Journey from Washington to Copenhagen

Start your unforgettable journey with Expedia. Our broad selection of flights from Washington to Copenhagen caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including British Airways, United, Virgin Atlantic, Delta, Lufthansa, Swiss International Air Lines, Air France. Our selection of flights from Washington Dulles Intl. to Kastrup caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Washington to Copenhagen Flights

Experience the joy of finding cheap flights from Washington Dulles Intl. to Kastrup that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$439 and roundtrip prices from S$790*.
 

Pre-Flight Essentials

Ensure a smooth journey from Washington to Copenhagen with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Copenhagen

Picture yourself stepping off the plane in Copenhagen and immersing yourself in the unique atmosphere of Copenhagen. From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Washington to Copenhagen Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Washington to Copenhagen.
 

Beyond the Flight – Exploring Copenhagen

With Expedia, your adventure extends beyond the flight. Explore Copenhagen at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Washington to Copenhagen with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Washington to Copenhagen with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Dulles Intl. Airport to Copenhagen Airport, Kastrup?
Start packing your suitcase, because round-trip flights from Dulles Intl. Airport to Copenhagen Airport, Kastrup start from S$790. That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book today to lock in the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to CPH?
Most flights can be cancelled online, but each airline has different terms and conditions. If you do have to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Washington Dulles Intl. Airport (IAD) to Kastrup Airport (CPH) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Washington Dulles Intl. Airport (IAD) to Kastrup Airport (CPH) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Dulles Intl. Airport to Kastrup Airport (CPH)?
The distance is around 6,500 kilometres. Eye mask? Check. A change of clothes? Check. We recommend you pack all the essentials for this long-haul Chantilly to Kastrup flight.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Kastrup Airport (CPH)?
Offering 30 flights each month, SAS (SK) is a great choice when flying straight from IAD to CPH.
Are Washington Dulles Intl. Airport (IAD) to Copenhagen Airport, Kastrup flight tickets cheaper when they're purchased at the last minute?
Tickets from Washington Dulles Intl. Airport (IAD) to Kastrup Airport (CPH) are available up to 12 months prior to departure on Expedia. And although you may occasionally pick up fantastic last-minute deals, it's not something you should bank on. Also, booking your flights in advance means you'll have more choices --- and you can avoid ending up with the dreaded middle seat! We're always updating our fares to bring you the biggest bargains, so check back often for all the latest specials.

Explore a world of travel with Expedia

Washington Airports

Washington

Ronald Reagan Washington National to Copenhagen
S$776.90
*Available to Expedia members.