Air distance from Saint-Denis, Reunion (French) to Riyadh, Saudi Arabia is 3158.4 Miles (5083 Kilometers / 2742.8 Nautical Miles).
Flight duration time from Saint-Denis to Riyadh is 6 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.