The cheapest Belgrade to Bastia return flight on the radar right now is €229, flying with Lufthansa via one or more connections. It covers departures in June 2027, and every dated link below opens that exact BEG–BIA search on Skyscanner. At 27% under the €313 we normally record here, it is one of the strongest BEG–BIA fares in our index. Across 88 recorded checks it has ranged between €219 and €688. Our sampling points to June 2027 as the cheapest month to fly Belgrade to Bastia.
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 Belgrade? We track 57 other departure cities for Bastia, 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 Belgrade to Bastia is often still worth booking within a day or two of the fare we found.