Air distance from Hobart, Australia to Ulaanbaatar, Mongolia is 6699.1 Miles (10781.1 Kilometers / 5817.5 Nautical Miles).
Flight duration time from Hobart to Ulaanbaatar is 13 hrs, 54 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.