Cheap flights from Singapore to London from £251

In general, April is the cheapest month to fly from Singapore to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £348. The month of August is another great option to travel to London Heathrow Airport, with average flight prices from Singapore averaging around £372.

On average, the least expensive day to fly to London Heathrow Airport from Singapore is on a Thursday. momondo users have found tickets for Thursday departures for as low as £651. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £1,070.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Singapore to London Heathrow Airport in the morning for as low as £761. 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 evening when prices are £841 on average. Flights to London Heathrow Airport from Singapore in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Singapore Changi to London Heathrow for the best Singapore - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from Singapore when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £655 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 Singapore for as low as £566 on momondo.

Emirates and China Eastern are the most popular carriers operating from Singapore to London Heathrow

Singapore Airlines, British Airways and Qantas Airways are the top three most popular airlines that fly to London Heathrow Airport from Singapore according to our data. Singapore Airlines is the first choice among our users, with 36% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 6 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between Singapore and London have experienced a delay on any given week. The average delay length over the past 12 months has been 144 minutes.

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

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Monday 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 5% of their flights experiencing any sort of delay.

The number of flights available between Singapore and London Heathrow Airport is 35 per day as of May 2026. The most frequent departure time is 23:00, with 42% of daily flights leaving in the evening.

As of May 2026, there are 246 flights per week flying from Singapore to London Heathrow Airport. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.