Cheap flights from London Heathrow Airport to Singapore from $621

In general, September is the cheapest month to fly from London Heathrow Airport to Singapore. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,082. If you aren’t able to travel during the month of September, then book flights to Singapore from London Heathrow Airport during May instead. Flights to Singapore in May, while not as cheap as those in September, still average around $1,094.

The cheapest day to depart on your flight to Singapore is on a Wednesday when prices can be found for as low as $2,005. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Singapore on Friday is $2,275.

In the morning is the cheapest time of day to fly from London Heathrow Airport to Singapore when you can find flight prices for as low as $2,122. Flying to Singapore in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $4,105. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Singapore from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,248 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from London Heathrow Airport for as low as $1,103 on momondo.

You could potentially save up to 9% on your flight if you consider stops on a London Heathrow Airport to Singapore flight.

As of May 2026, prices for London Heathrow Airport to Singapore flights are approximately 21% more expensive when compared to flights at the same time last year.

Historically, on average around 21% of flights between London and Singapore have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

Generally, flights departing in the evening 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. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Qantas Airways have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

The number of flights available between London Heathrow Airport and Singapore is 34 per day as of May 2026. The most frequent departure time is 22:00, with 65% of daily flights leaving in the evening.

The number of flights available between London Heathrow Airport and Singapore is 241 per week as of May 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.