Air distance from Kigali, Rwanda to Helena, USA is 8588.8 Miles (13822.3 Kilometers / 7458.5 Nautical Miles).
17 hrs, 50 mins is the flight duration between Kigali and Helena. 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.