Cheap flights from London Heathrow Airport to Colombo from $422

If you aren’t able to travel during the month of September, then book flights to Colombo Bandaranaike Intl Airport from London Heathrow Airport during November instead. Flights to Colombo Bandaranaike Intl Airport in November, while not as cheap as those in September, still average around $813.

On average, the least expensive day to fly to Colombo Bandaranaike Intl Airport from London Heathrow Airport is on a Monday. momondo users have found tickets for Monday departures for as low as $922. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Colombo Bandaranaike Intl Airport for around $1,504.

In the evening is the cheapest time of day to fly from London Heathrow Airport to Colombo Bandaranaike Intl Airport when you can find flight prices for as low as $1,023. Flying to Colombo Bandaranaike Intl Airport in the evening is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Colombo Bandaranaike Intl Airport, so prices are often more expensive at around $1,132 per ticket.

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

You are more likely to see cheaper flights to Colombo Bandaranaike Intl Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Colombo Bandaranaike Intl Airport for around $966 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colombo Bandaranaike Intl Airport from London Heathrow Airport for as low as $854 on momondo.

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

IndiGo is the most popular carrier operating from London Heathrow to Colombo Bandaranaike Intl

SriLankan Airlines, Qatar Airways and Etihad Airways are the top three most popular airlines that fly to Colombo Bandaranaike Intl Airport from London Heathrow Airport according to our data. SriLankan Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Colombo Bandaranaike Intl Airport. Keep in mind that there are 6 different airlines that fly to Colombo Bandaranaike Intl Airport 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 94 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the evening 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 51% 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 New Delhi (DEL) offer the lowest average round-trip price of $382.

Flights connecting via Kuwait City (KWI) have the shortest average one-way travel time: 9h 10m.

Mumbai (BOM) has the shortest average layover time for this route: 1h 28m.

The number of flights available between London Heathrow Airport and Colombo Bandaranaike Intl Airport is 2 per day as of March 2026. The most frequent departure time is 8:00PM, with 77% of daily flights leaving in the evening.

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