Cheap flights from Luxembourg to London from €18

In general, February is the cheapest month to fly from Luxembourg to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €83. If you are unable to visit London during the month of February, then departing from Luxembourg during the month November is also very affordable. Most momondo users find prices during this month for around €91.

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as €355. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Luxembourg to London for around €1,071.

The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as €355. In contrast, the most expensive time of day to depart to London is in the afternoon when prices are around €1,355.

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

You are more likely to see cheaper flights to London from Luxembourg when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around €138 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Luxembourg for as low as €108 on momondo.

There is only 1 cabin class available to choose from on Luxembourg to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Luxembourg to London.

As of September 2026, prices for Luxembourg to London flights are approximately 26% cheaper when compared to flights at the same time last year.

Historically, on average around 16% of flights between Luxembourg and London have experienced a delay on any given week. The average delay length over the past 12 months has been 96 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night 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 12% of their flights experiencing any sort of delay.

The number of flights available between Luxembourg and London is 6 per day as of September 2026. The most frequent departure time is 10:00, with 49% of daily flights leaving at midday.

44 flights are operational weekly from Luxembourg to London as of September 2026. The most popular departure day for this route is Mon, with 30% of flights per week taking off on this day.