The cheapest Porto to Hong Kong return flight on the radar right now is €599, flying with Turkish Airlines via one or more connections. It covers departures in February 2027, and every dated link below opens that exact OPO–HKG search on Skyscanner. At 27% under the €819 we normally record here, it is one of the strongest OPO–HKG fares in our index. Across 82 recorded checks it has ranged between €548 and €1,406. Our sampling points to February 2027 as the cheapest month to fly Porto to Hong Kong.
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 Porto? We track 61 other departure cities for Hong Kong, listed at the foot of this page.
Fares move quickly. If this Porto to Hong Kong 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.