Air distance from Washington DC, USA to Dakar, Senegal is 3975 Miles (6397.1 Kilometers / 3451.9 Nautical Miles).
8 hrs, 15 mins is the flight duration between Washington DC and Dakar. 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.