Air distance from Tucson, USA to Phnom Penh, Cambodia is 8642.4 Miles (13908.7 Kilometers / 7505.1 Nautical Miles).
17 hrs, 56 mins is the flight duration between Tucson and Phnom Penh. 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.