Cheap flights from London to Colombo from £302

The cheapest month to fly to Colombo from London is in September. Flight prices, which tend to average around £592, are often lower during this time because this is during the off-season. The month of May is another great option to travel to Colombo, with average flight prices from London averaging around £603.

On average, the least expensive day to fly to Colombo from London is on a Monday. momondo users have found tickets for Monday departures for as low as £748. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £835.

Our data shows that the cheapest London to Colombo flights are usually those with departure times in the afternoon. Our users have found flights to Colombo in the afternoon for as low as £692. Try not to purchase tickets in the evening because they tend to be around £786. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Colombo from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Colombo for around £716 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colombo from London for as low as £639 on momondo.

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

Gulf Air and Qatar Airways are the most popular carriers operating from London to Colombo

SriLankan Airlines, Etihad Airways and Qatar Airways are the top three most popular airlines that fly to Colombo from London according to our data. SriLankan Airlines is the first choice among our users, with 33% of people opting to fly with this airline when travelling to Colombo. Keep in mind that there are 17 different airlines that fly to Colombo on a routine basis, so you have a few additional options to choose from.

Historically, on average around 55% of flights between London and Colombo 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.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday 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 55% of their flights experiencing any sort of delay.

As of June 2026, there are 2 flights per day flying from London to Colombo. 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 Colombo is 14 per week as of June 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.