Air distance from Canberra, Australia to Phnom Penh, Cambodia is 4333.8 Miles (6974.6 Kilometers / 3763.5 Nautical Miles).
Flight duration time from Canberra to Phnom Penh is 8 hrs, 59 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.