| San Juan to Orbetello | 4,729.69 mi (7,611.70 km) |
| San Juan to Oria | 5,077.47 mi (8,171.40 km) |
| San Juan to Oristano | 4,610.30 mi (7,419.56 km) |
| San Juan to Orta Nova | 4,968.93 mi (7,996.72 km) |
| San Juan to Orte | 4,789.04 mi (7,707.21 km) |
| San Juan to Ortona | 4,891.93 mi (7,872.81 km) |
| San Juan to Orvieto | 4,773.14 mi (7,681.63 km) |
| San Juan to Orzinuovi | 4,649.66 mi (7,482.91 km) |
| San Juan to Osimo | 4,836.04 mi (7,782.85 km) |
| San Juan to Ospitaletto | 4,655.75 mi (7,492.71 km) |
| San Juan to Ostuni | 5,072.01 mi (8,162.61 km) |
| San Juan to Ottaviano | 4,910.38 mi (7,902.49 km) |
| San Juan to Ovada | 4,589.97 mi (7,386.84 km) |
| San Juan to Ozieri | 4,627.81 mi (7,447.74 km) |
| San Juan to Paceco | 4,836.90 mi (7,784.24 km) |
