Cheap flights from Colombo to London from £289

The cheapest month to fly to London from Colombo is in October. Flight prices, which tend to average around £605, 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 Colombo averaging around £642.

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £885. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Colombo to London for around £1,029.

The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as £774. Flights at midday are often more expensive, with an average ticket price of £928.

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

You are more likely to see cheaper flights to London from Colombo when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £719 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Colombo for as low as £556 on momondo.

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

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

SriLankan Airlines, Etihad Airways and Qatar Airways are the top three most popular airlines that fly to London from Colombo according to our data. SriLankan Airlines is the first choice among our users, with 42% of people opting to fly with this airline when travelling 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 Colombo and London have experienced a delay on any given week. The average delay length over the past 12 months has been 113 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the morning 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 15% of their flights experiencing any sort of delay.

As of April 2026, there are 2 flights per day flying from Colombo to London. The most common time of day flights depart is 13:00, with 100% of flights taking off in the afternoon.

As of April 2026, 14 flights take off from Colombo and land in London each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.