Cheap flights from Colombo to London from $540

If you aren’t able to travel during the month of June, then book flights to London from Colombo during October instead. Flights to London in October, while not as cheap as those in June, still average around $493.

Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as $1,283. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Colombo to London for around $2,007.

The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as $1,283. In contrast, the most expensive time of day to depart to London is at midday when prices are around $2,005.

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 $1,345 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 $1,062 on momondo.

There are 2 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.

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

Etihad Airways, Qatar Airways and SriLankan Airlines are the top three most popular airlines that fly to London from Colombo according to our data. Etihad Airways is the first choice among our users, with 46% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 17% 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 16% of their flights experiencing any sort of delay.

As of June 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.

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