Air distance from Luxembourg, Luxembourg to Castries, Saint Lucia is 4441.1 Miles (7147.3 Kilometers / 3856.7 Nautical Miles).
Flight duration time from Luxembourg to Castries is 9 hrs, 13 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.