The cheapest London Gatwick to Colombo return flight on the radar right now is £450, flying with Air Arabia via one or more connections. It covers departures in October 2026, and every dated link below opens that exact LGW–CMB search on Skyscanner. That is roughly 16% below the £537 this route usually costs. Across 72 recorded checks it has ranged between £449 and £1,018. Our sampling points to October 2026 as the cheapest month to fly London Gatwick to Colombo.
Every fare here is re-confirmed against Skyscanner automatically, and each one is stamped with the moment it was last checked, so you can see how fresh it is instead of taking it on trust. Not flying from London Gatwick? We track 63 other departure cities for Colombo, listed at the foot of this page.
Fares move quickly. If this London Gatwick to Colombo price has gone by the time you search, shift the dates a day or two either side, because the same route is often still cheap just next door.