Air distance from San Marino, San Marino to Cayenne, French Guiana is 4733.4 Miles (7617.6 Kilometers / 4110.4 Nautical Miles).
Flight duration time from San Marino to Cayenne is 9 hrs, 49 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.