Cheap flights from Singapore to London from $346

The month of November is, on average, the cheapest month to fly to London Heathrow Airport from Singapore, with most prices found around $769. If you’re not able to fly to London Heathrow Airport in November, then February is your next best option. Flight prices from Singapore to London Heathrow Airport during February average around $791.

Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $931. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,397.

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 $1,114. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $1,232.

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 $886 when searching weeks out. 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 $766 on momondo.

You could potentially save up to 18% on your flight if you consider stops on a Singapore to London Heathrow Airport flight.

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

Emirates, China Eastern, and Qatar Airways are the most popular carriers operating from Singapore Changi to London Heathrow

Singapore Airlines, Qatar Airways and Emirates 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 50% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 7 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 144 minutes.

Generally, flights departing at night 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. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 5% of their flights experiencing any sort of delay.

Doha (DOH) was the most common stop: 23% of momondo users choosing 1-stop flights on this route connected there.

Flights via Istanbul (IST) offer the lowest average round-trip price of $722.

Flights connecting via Zurich (ZRH) have the shortest average one-way travel time: 16h 00m.

Zurich (ZRH) has the shortest average layover time for this route: 1h 01m.

As of May 2026, there are 35 flights per day flying from Singapore to London Heathrow Airport. The most common time of day flights depart is 11:00PM, with 42% of flights taking off in the evening.

The number of flights available between Singapore and London Heathrow Airport is 247 per week as of May 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.