Cheap flights from London Heathrow Airport to Singapore from $403

The month of May is, on average, the cheapest month to fly to Singapore from London Heathrow Airport, with most prices found around $723. If you aren’t able to travel to Singapore during the month of May, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $744.

The cheapest day to depart from London Heathrow Airport to Singapore is on a Thursday when prices can be found for as low as $1,099. The most expensive day to fly to Singapore is Friday, with ticket prices averaging around $1,444.

In the afternoon is the cheapest time of day to fly from London Heathrow Airport to Singapore when you can find flight prices for as low as $1,076. Flying to Singapore in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,253 on average. Flights to Singapore from London Heathrow Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $871 when searching weeks out. 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 $765 on momondo.

There are 4 cabin classes available to choose from on London Heathrow to Singapore Changi 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 15% on your flight if you consider stops on a London Heathrow Airport to Singapore flight.

As of March 2026, prices for London Heathrow Airport to Singapore flights are approximately 3% cheaper when compared to flights at the same time last year.

Hainan Airlines is the most popular carrier operating from London Heathrow to Singapore Changi

Singapore Airlines, British Airways and Gulf Air are the top three most popular airlines that fly to Singapore from London Heathrow Airport according to our data. Singapore Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 4 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

Historically, on average around 23% 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 107 minutes.

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

Saturday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

Bangkok (BKK) was the most common stop: 53% of momondo users choosing 1-stop flights on this route connected there.

Flights via Bangkok (BKK) offer the lowest average round-trip price of $833.

Flights connecting via Zurich (ZRH) have the shortest average one-way travel time: 15h 20m.

Zurich (ZRH) has the shortest average layover time for this route: 2h 35m.

As of March 2026, 34 flights take off from London Heathrow Airport and land in Singapore each day. The most common flight departure time for this route is 9:00PM, with 67% of daily flights taking off in the evening.

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