Air distance from Unalaska, USA to Pretoria, South Africa is 10357.8 Miles (16669.2 Kilometers / 8994.7 Nautical Miles).
Flight duration time from Unalaska to Pretoria is 21 hrs, 30 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.