Air distance from Hobart, Australia to Montgomery, USA is 9471.9 Miles (15243.6 Kilometers / 8225.4 Nautical Miles).
19 hrs, 40 mins is the flight duration between Hobart and Montgomery. 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.