Air distance from San Marino, San Marino to San Juan, Puerto Rico is 4779.9 Miles (7692.5 Kilometers / 4150.9 Nautical Miles).
Flight duration time from San Marino to San Juan is 9 hrs, 55 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.