The cheapest Birmingham to Colombo return flight on the radar right now is £713, flying with Etihad Airways via one or more connections. It covers departures in January 2027, and every dated link below opens that exact BHX–CMB search on Skyscanner. The price we usually record on this route is £621. Across 55 recorded checks it has ranged between £446 and £783. Our sampling points to January 2027 as the cheapest month to fly Birmingham to Colombo.
Prices are re-checked against Skyscanner automatically, and every one shows when it was last confirmed, so nothing here is older than it looks. Not flying from Birmingham? We track 58 other departure cities for Colombo, listed at the foot of this page.
Prices like this tend to vanish fast. If it has gone when you look, try the days either side of the dates above, since Birmingham to Colombo is often still worth booking within a day or two of the fare we found.