Air distance from Hiroshima, Japan to Naples, Italy is 5944.7 Miles (9567.1 Kilometers / 5162.4 Nautical Miles).
12 hrs, 20 mins is the flight duration between Hiroshima and Naples. This is the In-The-Air flight time. You should also add the taxi time, airport wait times and possible delays due to bad weather, etc. for the total flight duration time.