Air distance from Ottawa Canada to Changsha China is 7341.6 Miles (11815.2 Kilometers / 6375.5 Nautical Miles).
Flight duration time from Ottawa Canada to Changsha China is 15 hrs, 14 mins. 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.