Cheap flights from Singapore to London from $337

The cheapest month to fly to London from Singapore is in May. Flight prices, which tend to average around $745, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Singapore averaging around $751.

The cheapest day to depart from Singapore to London is on a Monday. Travelers who choose to depart for London on a Monday will often find tickets for as low as $934. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,252. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Singapore in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,051 when looking at flights departing in the morning. Flights to London are more costly in the evening, with an average ticket price of $1,143. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Singapore Changi to London Heathrow for the best Singapore Changi - 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 $877 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Singapore for as low as $794 on momondo.

There are 4 cabin classes available to choose from on Singapore Changi to London 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 18% on your flight if you consider stops on a Singapore to London flight.

As of April 2026, prices for Singapore to London flights are approximately 4% more expensive when compared to flights at the same time last year.

Etihad Airways, Air China, and Qatar Airways are the most popular carriers operating from Singapore Changi to London

Singapore Airlines, British Airways and Qatar 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 52% of people opting to fly with this airline when traveling to London. Keep in mind that there are 7 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% 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 in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Thursday 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.

Dubai (DXB) was the most common stop: 21% 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: 15h 53m.

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

As of April 2026, there are 37 flights per day flying from Singapore to London. The most common time of day flights depart is 11:00PM, with 46% of flights taking off in the evening.

The number of flights available between Singapore and London is 259 per week as of April 2026. The most frequent departure day is Wed, with 15% of weekly flights leaving on this day.