Cheap flights from London to Sri Lanka from £309

The month of September is, on average, the cheapest month to fly to Sri Lanka from London, with most prices found around £597. If you aren’t able to travel to Sri Lanka during the month of September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of £609.

Our data shows that Monday is the least expensive day to fly to Sri Lanka. Tickets to fly out on this day can be as low as £733. 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 Sri Lanka on Friday is £842.

Our most recent data shows that the best time of day to fly to Sri Lanka is in the morning. Flights from London to Sri Lanka during this time can be as low as £777. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £1,171 on average. Flights to Sri Lanka from London in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from London Heathrow to Colombo Bandaranaike Intl for the best London - Sri Lanka flight prices

You are more likely to see cheaper flights to Sri Lanka from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Sri Lanka for around £721 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sri Lanka from London for as low as £645 on momondo.

Etihad Airways, Gulf Air, and Qatar Airways are the most popular carriers operating from London to Sri Lanka

SriLankan Airlines, Etihad Airways and Qatar Airways are the top three most popular airlines that fly to Sri Lanka from London according to our data. SriLankan Airlines is the first choice among our users, with 34% of people opting to fly with this airline when travelling to Sri Lanka. Keep in mind that there are 17 different airlines that fly to Sri Lanka on a routine basis, so you have a few additional options to choose from.

Historically, on average around 56% of flights between London and Sri Lanka have experienced a delay on any given week. The average delay length over the past 12 months has been 99 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the morning 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. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, SriLankan Airlines have had the fewest delays on this route over the last 12 months, with about 56% of their flights experiencing any sort of delay.

As of May 2026, there are 2 flights per day flying from London to Sri Lanka. The most common time of day flights depart is 21:00, with 100% of flights taking off in the evening.

The number of flights available between London and Sri Lanka is 14 per week as of May 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.