Air distance from Sydney Australia to Boise Idaho is 7883.1 Miles (12686.6 Kilometers / 6845.6 Nautical Miles).
Flight duration time from Sydney Australia to Boise Idaho is 16 hrs, 22 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.