Cheap flights from Singapore to London from £251

The cheapest month to fly to London from Singapore is in April. Flight prices, which tend to average around £281, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Singapore averaging around £429.

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £651. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Singapore to London for around £1,070.

The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as £761. Flights in the evening are often more expensive, with an average ticket price of £829.

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

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

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

Singapore Airlines, British Airways and Qantas Airways are the top three most popular airlines that fly to London from Singapore according to our data. Singapore Airlines is the first choice among our users, with 39% of people opting to fly with this airline when travelling to London. Keep in mind that there are 6 different airlines that fly to London 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 137 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 6% of their flights experiencing any sort of delay.

The number of flights available between Singapore and London is 38 per day as of May 2026. The most frequent departure time is 23:00, with 46% of daily flights leaving in the evening.

As of May 2026, there are 269 flights per week flying from Singapore to London. The most common day of the week flights depart is Thu, with 15% of flights taking off on this day.