Cheap flights from London Heathrow Airport to Luxembourg from £63

The month of March is, on average, the cheapest month to fly to Luxembourg from London Heathrow Airport, with most prices found around £101. If you are unable to visit Luxembourg during the month of March, then departing from London Heathrow Airport during the month June is also very affordable. Most momondo users find prices during this month for around £122.

The cheapest day to depart from London Heathrow Airport to Luxembourg is on a Thursday when prices can be found for as low as £124. Flights from London Heathrow Airport to Luxembourg on a Sunday will generally be more expensive and average around £166. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the evening is the cheapest time of day to fly from London Heathrow Airport to Luxembourg when you can find flight prices for as low as £96. Flying to Luxembourg in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive, with an average ticket price of £132.

Fly from London Heathrow to Luxembourg for the best London Heathrow - Luxembourg flight prices

You are more likely to see cheaper flights to Luxembourg from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Luxembourg for around £137 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Luxembourg from London Heathrow Airport for as low as £80 on momondo.

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

The number of flights available between London Heathrow Airport and Luxembourg is 3 per day as of October 2026. The most frequent departure time is 18:00, with 60% of daily flights leaving at midday.

As of October 2026, there are 23 flights per week flying from London Heathrow Airport to Luxembourg. The most common day of the week flights depart is Thu, with 39% of flights taking off on this day.