Air distance from Canberra, Australia to Cayenne, French Guiana is 9922.8 Miles (15969.2 Kilometers / 8617 Nautical Miles).
Flight duration time from Canberra to Cayenne is 20 hrs, 36 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.