Cheap flights from District of Columbia to Copenhagen from $137

The cheapest month to fly to Copenhagen from District of Columbia is in September. Flight prices, which tend to average around $535, 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 September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $537.

The cheapest day to depart from District of Columbia to Copenhagen is on a Monday when prices can be found for as low as $612. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from District of Columbia to Copenhagen for around $689.

Flying to Copenhagen from District of Columbia in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $594 when looking at flights departing in the afternoon. Try not to purchase tickets in the evening because they tend to be around $645. 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 District of Columbia - Kastrup Copenhagen flight prices

You are more likely to see cheaper flights to Copenhagen from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Copenhagen for around $633 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Copenhagen from District of Columbia for as low as $592 on momondo.

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

Finnair, KLM, and United Airlines are the most popular carriers operating from District of Columbia to Kastrup Copenhagen

Scandinavian Airlines, Icelandair and PLAY are the top three most popular airlines that fly to Copenhagen from District of Columbia according to our data. Scandinavian Airlines is the first choice among our users, with 63% 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.

The number of flights available between District of Columbia and Copenhagen is 1 per day as of February 2026. The most frequent departure time is 8:00PM, with 100% of daily flights leaving in the evening.

The number of flights available between District of Columbia and Copenhagen is 12 per week as of February 2026. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.