Cheap flights from Boston to Copenhagen from $309

The cheapest month to fly to Copenhagen from Boston is in February. Flight prices, which tend to average around $487, 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 $514.

The cheapest day to depart from Boston to Copenhagen is on a Sunday when prices can be found for as low as $652. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Copenhagen for around $718.

Flying to Copenhagen from Boston in the evening is the least expensive time of day to depart. momondo users have found prices as low as $559 when looking at flights departing in the evening. Try not to purchase tickets in the afternoon because they tend to be around $686. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Boston Logan Intl to Kastrup Copenhagen for the best Boston Logan Intl - Kastrup Copenhagen flight prices

You are more likely to see cheaper flights to Copenhagen from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Copenhagen for around $645 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Copenhagen from Boston for as low as $634 on momondo.

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

Icelandair, TAP AIR PORTUGAL, and Air Canada are the most popular carriers operating from Boston Logan Intl to Kastrup Copenhagen

Scandinavian Airlines, Icelandair and United Airlines are the top three most popular airlines that fly to Copenhagen from Boston according to our data. Scandinavian Airlines is the first choice among our users, with 72% 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.

Historically, on average around 8% of flights between Boston and Copenhagen have experienced a delay on any given week. The average delay length over the past 12 months has been 111 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Scandinavian Airlines have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Toronto (YYZ) offer the lowest average round-trip price of $414.

Flights connecting via Zurich (ZRH) have the shortest average one-way travel time: 9h 51m.

Zurich (ZRH) has the shortest average layover time for this route: 1h 34m.

3 flights are operational daily from Boston to Copenhagen as of July 2026. The most popular departure time for this route is 5:00PM, with 100% of flights per day taking off in the afternoon.

As of July 2026, 21 flights take off from Boston and land in Copenhagen each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.