$327 Find Cheap Flights from Reagan Washington National Airport to Denmark - Compare and Save

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1 adult, Economy, 0 bags

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Cheap Flights from Reagan-National to Denmark

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Copenhagen
Copenhagen1 stop$605
Billund
Billund2 stops$695
Copenhagen
Copenhagen1 stop$605
Billund
Billund2 stops$695
Booking Insights

Price, demand and travel trends for Washington, D.C. Reagan-National Airport to Denmark flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Washington, D.C. Reagan-National Airport to Denmark right now?

The cheapest fare from Washington, D.C. Reagan-National Airport to Denmark in the last week was $605 round-trip, to Kastrup Copenhagen (CPH).

What’s the cheapest month to fly from Washington, D.C. Reagan-National Airport to Denmark?

February is the cheapest time of year to fly, with average fares of $422. Prices are highest in January, when average flight costs increase to around $2,837.

Which airport in Denmark is the cheapest to fly to from Washington, D.C. Reagan-National Airport?

All flights from Washington, D.C. Reagan-National Airport to Denmark arrive at Kastrup Copenhagen (CPH). On average, round-trip fares are around $813.

What’s the cheapest day to fly from Washington, D.C. Reagan-National Airport to Denmark?

Sunday tends to be the cheapest day to fly from Washington, D.C. Reagan-National Airport to Denmark, while Saturday is the most expensive. Fares run about 56% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Washington, D.C. Reagan-National Airport to Denmark?

Data from the past 12 months shows it's cheapest to fly to Denmark during the evening with average prices of $567. The afternoon is the most expensive time to fly, with average prices of $896.

Key details for Washington, D.C. Reagan-National Airport to Denmark flights

Low season

October

Cheapest flight

$327
Beat the crowds with an average 70% drop in travelers.
The most popular month to fly with an average 167% increase in travelers.
One-way flight from Washington, D.C. Reagan-National Airport to Copenhagen

Your Washington, D.C. Reagan-National Airport to Denmark flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Washington, D.C. Reagan-National Airport to Denmark?

    Yes. Fares from Washington, D.C. Reagan-National Airport to Denmark are low right now. As a rule of thumb, a round-trip under $652 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Washington, D.C. Reagan-National Airport to Denmark?

    Over the past 12 months, round-trip fares from Washington, D.C. Reagan-National Airport to Denmark have ranged from $652 to $958.

  • What airlines fly nonstop from Washington, D.C. Reagan-National Airport to Denmark?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Washington, D.C. Reagan-National Airport to Denmark. One-stop options include:

    • American Airlines
    • Delta
    • United Airlines

  • Which cabin classes are available on flights from Washington, D.C. Reagan-National Airport to Denmark?

    On flights from Washington, D.C. Reagan-National Airport to Denmark you can book Economy Class or Premium Economy Class.

  • What are some popular landmarks in Denmark?

    KAYAK travelers' favorite landmarks in Denmark include:

    • Tivoli
    • Amager Square
    • Bella Center
    • Legoland Billund

Your guide to booking Washington, D.C. Reagan-National Airport to Denmark flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid January when prices are at their highest.
  • Flying on Sunday is usually the cheapest. Flights on Saturday cost about 56% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in Copenhagen, which is the most popular destination in Denmark. From there, it's easy to continue on to other popular destinations such as Kastrup, Aarhus and Billund.

Reviews of the top airline flying from Reagan-National to Denmark

 
Need help choosing which airline to fly with from Reagan-National to Denmark? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
United AirlinesOverall score based on 10486 reviews
7.7Boarding
7.3Comfort
8.1Crew
6.7Food
7.1Entertainment
Airline reviews

I appreciate how quickly and kindly the people at the gate at DCA accommodated several of us who wanted to switch from the 6pm flight to the 5pm flight at the last minute. The flight crew was helpful to us too (dealing with luggage).

10.0 ExcellentDavid, Nov 2026
Read more United Airlines reviews

I appreciate how quickly and kindly the people at the gate at DCA accommodated several of us who wanted to switch from the 6pm flight to the 5pm flight at the last minute. The flight crew was helpful to us too (dealing with luggage).

The couple in front of me were constantly talking over the announcement from the captain and this was annoying me.

Flight attendant incredibly rude. Stuck her finger in my drink and didn’t even have the courtesy to apologize.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Never nice, United Express partners always do an amazing job.

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

The flight was on time and the crew were great.

I was forced to gate check my carry on luggage. Somehow it did not arrive at my destination. I still have yet to receive my bag r days after arrival.

More options for your flight from Reagan-National to Denmark

Complete your trip to Denmark with a hotel stay or car rental