Air distance from Guam, USA to San Luis Potosi, Mexico is 7409.9 Miles (11925.1 Kilometers / 6434.8 Nautical Miles).
Flight duration time from Guam to San Luis Potosi is 15 hrs, 23 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.