Air distance from Guam, USA to Conakry, Guinea is 10259.9 Miles (16511.8 Kilometers / 8909.7 Nautical Miles).
Flight duration time from Guam to Conakry is 21 hrs, 18 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.