Cheap flights from London to Sri Lanka from £316

The month of September is, on average, the cheapest month to fly to Sri Lanka from London, with most prices found around £596. 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 £614.

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 £696. 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 £787.

Our most recent data shows that the best time of day to fly to Sri Lanka is in the evening. Flights from London to Sri Lanka during this time can be as low as £729. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £760 on average. Flights to Sri Lanka from London in the morning 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 £723 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 £639 on momondo.

There are 3 cabin classes available to choose from on London to Sri Lanka flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

SriLankan Airlines, Qatar Airways and Etihad 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 37% of people opting to fly with this airline when travelling to Sri Lanka. Keep in mind that there are 16 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 51% 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 94 minutes.

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

Tuesday 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 51% of their flights experiencing any sort of delay.

As of March 2026, there are 2 flights per day flying from London to Sri Lanka. The most common time of day flights depart is 20:00, with 77% of flights taking off in the evening.

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