Air distance from Tucuman, Argentina to Castries, Saint Lucia is 2814.7 Miles (4529.8 Kilometers / 2444.3 Nautical Miles).
Flight duration time from Tucuman to Castries is 5 hrs, 50 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.