Air distance from Windhoek, Namibia to Apia, Samoa is 9894 Miles (15922.8 Kilometers / 8591.9 Nautical Miles).
20 hrs, 32 mins is the flight duration between Windhoek and Apia. 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.