Air distance from Khon Kaen, Thailand to Sydney, Australia is 4698.4 Miles (7561.3 Kilometers / 4080.1 Nautical Miles).
Flight duration time from Khon Kaen to Sydney is 9 hrs, 45 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.