Cheap flights from Colombo to London from $519

If you aren’t able to travel during the month of May, then book flights to London from Colombo during October instead. Flights to London in October, while not as cheap as those in May, still average around $1,216.

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 $1,294. 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 $2,024.

Fly from Colombo Bandaranaike Intl to London Gatwick 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 $1,351 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 $1,106 on momondo.

Historically, on average around 15% 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 110 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 July 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 July 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.