Cheap flights from Sri Lanka to the United Kingdom from £264

The cheapest month to fly to United Kingdom from Sri Lanka is in October. Flight prices, which tend to average around £601, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of October, then departing from Sri Lanka during the month March is also very affordable. Most momondo users find prices during this month for around £633.

The cheapest day to depart from Sri Lanka to United Kingdom is on a Wednesday. Travellers who choose to depart for United Kingdom on a Wednesday will often find tickets for as low as £868. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Sri Lanka to United Kingdom for around £1,007.

The cheapest time of day to fly to United Kingdom is in the morning when flights can be purchased for as low as £772. Try not to purchase tickets at midday because they tend to be around £906. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Colombo Bandaranaike Intl to London Heathrow for the best Sri Lanka - United Kingdom flight prices

You are more likely to see cheaper flights to United Kingdom from Sri Lanka when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £715 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Sri Lanka for as low as £571 on momondo.

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

British Airways, IndiGo, and Qatar Airways are the most popular carriers operating from Sri Lanka to United Kingdom

SriLankan Airlines, Qatar Airways and British Airways are the top three most popular airlines that fly to United Kingdom from Sri Lanka according to our data. SriLankan Airlines is the first choice among our users, with 34% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 7 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% of flights between Sri Lanka and United Kingdom 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 departing at night 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 12% of their flights experiencing any sort of delay.

As of February 2026, there are 2 flights per day flying from Sri Lanka to United Kingdom. The most common time of day flights depart is 12:00, with 77% of flights taking off in the afternoon.

As of February 2026, there are 14 flights per week flying from Sri Lanka to United Kingdom. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.