The cheapest Porto to Olbia return flight on the radar right now is €124, flying with Vueling Airlines via one or more connections. It covers departures in June 2027, and every dated link below opens that exact OPO–OLB search on Skyscanner. At 39% under the €205 we normally record here, it is one of the strongest OPO–OLB fares in our index. Across 72 recorded checks it has ranged between €124 and €552. Our sampling points to June 2027 as the cheapest month to fly Porto to Olbia.
We do not post a price and leave it to age. Each fare is re-checked against Skyscanner on a schedule and carries the time it was last confirmed. Not flying from Porto? We track 48 other departure cities for Olbia, listed at the foot of this page.
Cheap fares do not hang around. If this one has already gone, nudge the dates either way by a day or two; Porto to Olbia is usually still decent value around the same window.