Air distance from Suva, Fiji to Castries, Saint Lucia is 8534.1 Miles (13734.3 Kilometers / 7411 Nautical Miles).
Flight duration time from Suva to Castries is 17 hrs, 43 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.