Cheap flights from Singapore to London from £244

In general, November 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 £563. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Singapore averaging around £587.

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 £705. 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 £1,040.

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 £727. 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 £755 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 Changi - 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 £644 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 £602 on momondo.

There are 4 cabin classes available to choose from on Singapore Changi to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 6% on your flight if you consider stops on a Singapore to London Heathrow Airport flight.

As of February 2026, prices for Singapore to London Heathrow Airport flights are approximately 16% more expensive when compared to flights at the same time last year.

Air China, Qatar Airways, and China Eastern are the most popular carriers operating from Singapore Changi 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 37% 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 15% 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 139 minutes.

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

Wednesday 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.

Dubai (DXB) was the most common stop: 32% of momondo users choosing one-stop flights on this route connected there.

Flights via Kuala Lumpur (KUL) offer the lowest average return price of £588.

Flights connecting via Kuala Lumpur (KUL) have the shortest average one-way travel time: 15h 40m.

Munich (MUC) has the shortest average stopover time for this route: 1h 20m.

As of February 2026, there are 27 flights per day flying from Singapore to London Heathrow Airport. The most common time of day flights depart is 23:00, with 50% of flights taking off in the evening.

194 flights are operational weekly from Singapore to London Heathrow Airport as of February 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.