Cheap flights from Washington, D.C. to Copenhagen from $227

The cheapest month to fly to Copenhagen from Washington, D.C. is in February. Flight prices, which tend to average around $539, are often lower during this time because this is during the off-season. If you aren’t able to travel to Copenhagen during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $542.

The cheapest day to depart from Washington, D.C. to Copenhagen is on a Tuesday when prices can be found for as low as $615. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Copenhagen for around $686.

Flying to Copenhagen from Washington, D.C. in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $582 when looking at flights departing in the afternoon. Try not to purchase tickets in the evening because they tend to be around $641. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Washington, D.C. Dulles Intl to Kastrup Copenhagen for the best Washington, D.C. - Kastrup Copenhagen flight prices

You are more likely to see cheaper flights to Copenhagen from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Copenhagen for around $625 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Copenhagen from Washington, D.C. for as low as $579 on momondo.

There are 3 cabin classes available to choose from on Washington, D.C. to Kastrup Copenhagen flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 36% on your flight if you consider stops on a Washington, D.C. to Copenhagen flight.

As of March 2026, prices for Washington, D.C. to Copenhagen flights are approximately 1% more expensive when compared to flights at the same time last year.

TAP AIR PORTUGAL, Lufthansa, and United Airlines are the most popular carriers operating from Washington, D.C. to Kastrup Copenhagen

Scandinavian Airlines, Icelandair and United Airlines are the top three most popular airlines that fly to Copenhagen from Washington, D.C. according to our data. Scandinavian Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Copenhagen. Keep in mind that there are 11 different airlines that fly to Copenhagen on a routine basis, so you have a few additional options to choose from.

Reykjavik (KEF) was the most common stop: 54% of momondo users choosing 1-stop flights on this route connected there.

Flights via Lisbon (LIS) offer the lowest average round-trip price of $511.

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 35m.

Zurich (ZRH) has the shortest average layover time for this route: 1h 29m.

As of March 2026, there are 2 flights per day flying from Washington, D.C. to Copenhagen. The most common time of day flights depart is 9:00PM, with 100% of flights taking off in the evening.

As of March 2026, 18 flights take off from Washington, D.C. and land in Copenhagen each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.