Cheap flights from Colombo Bandaranaike Intl Airport to London from $363

The cheapest month to fly to London from Colombo Bandaranaike Intl Airport is in October. Flight prices, which tend to average around $819, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Colombo Bandaranaike Intl Airport averaging around $863.

The cheapest day to depart from Colombo Bandaranaike Intl Airport to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $1,183. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,465. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Colombo Bandaranaike Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,122 when looking at flights departing in the evening. Flights to London are more costly in the morning, with an average ticket price of $1,366. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to London from Colombo Bandaranaike Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $975 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Colombo Bandaranaike Intl Airport for as low as $779 on momondo.

There are 2 cabin classes available to choose from on Colombo Bandaranaike Intl to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

IndiGo and Gulf Air are the most popular carriers operating from Colombo Bandaranaike Intl to London

Etihad Airways, Qatar Airways and SriLankan Airlines are the top three most popular airlines that fly to London from Colombo Bandaranaike Intl Airport according to our data. Etihad Airways is the first choice among our users, with 39% of people opting to fly with this airline when traveling to London. Keep in mind that there are 6 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% 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 116 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

Abu Dhabi (AUH) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Mumbai (BOM) offer the lowest average round-trip price of $713.

Flights connecting via Dubai (DXB) have the shortest average one-way travel time: 13h 05m.

Doha (DOH) has the shortest average layover time for this route: 1h 16m.

As of February 2026, 2 flights take off from Colombo Bandaranaike Intl Airport and land in London each day. The most common flight departure time for this route is 12:00PM, with 77% of daily flights taking off in the afternoon.

14 flights are operational weekly from Colombo Bandaranaike Intl Airport to London as of February 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.