Air distance from Canberra, Australia to Billings, USA is 8456.8 Miles (13609.9 Kilometers / 7343.9 Nautical Miles).
Flight duration time from Canberra to Billings is 17 hrs, 33 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.