Cheap flights from Denmark to London from £45

In general, January is the cheapest month to fly from Denmark to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £124. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Denmark averaging around £128.

On average, the least expensive day to fly to London Heathrow Airport from Denmark is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £137. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £186.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Denmark to London Heathrow Airport in the evening for as low as £120. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £193 on average. Flights to London Heathrow Airport from Denmark in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Billund to London Heathrow for the best Denmark - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from Denmark when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £153 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Denmark for as low as £125 on momondo.

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

Historically, on average around 10% of flights between Denmark and London have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

As of February 2026, there are 28 flights per day flying from Denmark to London Heathrow Airport. The most common time of day flights depart is 08:00, with 47% of flights taking off in the afternoon.

As of February 2026, 199 flights take off from Denmark and land in London Heathrow Airport each week. The most common flight departure day for this route is Fri, with 25% of weekly flights taking off on this day.