Cheap flights from London Heathrow Airport to Colombo from £327

The cheapest month to fly to Colombo from London Heathrow Airport is in September. Flight prices, which tend to average around £598, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Colombo, with average flight prices from London Heathrow Airport averaging around £612.

On average, the least expensive day to fly to Colombo from London Heathrow Airport is on a Monday. momondo users have found tickets for Monday departures for as low as £706. 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 Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £798.

Our data shows that the cheapest London Heathrow Airport to Colombo flights are usually those with departure times in the evening. Our users have found flights to Colombo in the evening for as low as £741. Try not to purchase tickets in the morning because they tend to be around £773. 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 Heathrow - Colombo flight prices

You are more likely to see cheaper flights to Colombo from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Colombo for around £727 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 Heathrow Airport for as low as £643 on momondo.

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

Etihad Airways, Air India, and British Airways are the most popular carriers operating from London Heathrow to Colombo

SriLankan Airlines, Qatar Airways and Etihad Airways are the top three most popular airlines that fly to Colombo from London Heathrow Airport according to our data. SriLankan Airlines is the first choice among our users, with 38% of people opting to fly with this airline when travelling to Colombo. Keep in mind that there are 16 different airlines that fly to Colombo on a routine basis, so you have a few additional options to choose from.

Historically, on average around 51% 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 95 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. Friday 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.

The number of flights available between London Heathrow Airport and Colombo is 2 per day as of March 2026. The most frequent departure time is 20:00, with 77% of daily flights leaving in the evening.

As of March 2026, 18 flights take off from London Heathrow Airport and land in Colombo each week. The most common flight departure day for this route is Sat, with 22% of weekly flights taking off on this day.