Cheap flights from Singapore to London from £251

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 £561. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Singapore averaging around £590.

On average, the least expensive day to fly to London Heathrow Airport from Singapore is on a Friday. momondo users have found tickets for Friday departures for as low as £683. 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 £1,048.

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 £745. 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 £806 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 £656 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 £598 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 2% on your flight if you consider stops on a Singapore to London Heathrow Airport flight.

As of April 2026, prices for Singapore to London Heathrow Airport flights are approximately 1% more expensive when compared to flights at the same time last year.

Qatar Airways and Emirates 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 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 148 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.

Thursday 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: 33% of momondo users choosing one-stop flights on this route connected there.

Flights via Helsinki (HEL) offer the lowest average return price of £635.

Flights connecting via Munich (MUC) have the shortest average one-way travel time: 15h 50m.

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

As of April 2026, there are 35 flights per day flying from Singapore to London Heathrow Airport. The most common time of day flights depart is 23:00, with 35% of flights taking off in the evening.

246 flights are operational weekly from Singapore to London Heathrow Airport as of April 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.