Cheap flights from London to Singapore from $400

The month of January is, on average, the cheapest month to fly to Singapore from London, with most prices found around $816. If you aren’t able to travel to Singapore during the month of January, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $830.

The cheapest day to depart from London to Singapore is on a Sunday when prices can be found for as low as $1,091. The most expensive day to fly to Singapore is Friday, with ticket prices averaging around $1,389.

In the afternoon is the cheapest time of day to fly from London to Singapore when you can find flight prices for as low as $1,026. 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 $1,372 on average. Flights to Singapore from London 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 - Singapore Changi flight prices

You are more likely to see cheaper flights to Singapore from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $940 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from London for as low as $816 on momondo.

There are 4 cabin classes available to choose from on London to Singapore 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 14% on your flight if you consider stops on a London to Singapore flight.

As of October 2026, prices for London to Singapore flights are approximately 10% cheaper when compared to flights at the same time last year.

Historically, on average around 11% 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 116 minutes.

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

Tuesday 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 9% of their flights experiencing any sort of delay.

Manama (BAH) was the most common stop: 28% of momondo users choosing 1-stop flights on this route connected there.

Flights via Shenzhen (SZX) offer the lowest average round-trip price of $514.

Flights connecting via Zurich (ZRH) have the shortest average one-way travel time: 15h 25m.

Zurich (ZRH) has the shortest average layover time for this route: 1h 00m.

The number of flights available between London and Singapore is 39 per day as of October 2026. The most frequent departure time is 8:00PM, with 57% of daily flights leaving in the evening.

As of October 2026, 275 flights take off from London and land in Singapore each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.