Air distance from Canberra, Australia to Castries, Saint Lucia is 10084.1 Miles (16228.8 Kilometers / 8757 Nautical Miles).
Flight duration time from Canberra to Castries is 20 hrs, 56 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.