Air distance from Saint-Denis, Reunion (French) to Riga, Latvia is 5626.3 Miles (9054.6 Kilometers / 4885.9 Nautical Miles).
11 hrs, 40 mins is the flight duration between Saint-Denis and Riga. 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.