| San Bernardino to Orbetello | 6,224.57 mi (10,017.47 km) |
| San Bernardino to Oria | 6,535.28 mi (10,517.52 km) |
| San Bernardino to Oristano | 6,266.32 mi (10,084.67 km) |
| San Bernardino to Orta Nova | 6,429.32 mi (10,347.00 km) |
| San Bernardino to Orte | 6,261.90 mi (10,077.55 km) |
| San Bernardino to Ortona | 6,332.32 mi (10,190.88 km) |
| San Bernardino to Orvieto | 6,239.22 mi (10,041.05 km) |
| San Bernardino to Orzinuovi | 6,028.15 mi (9,701.37 km) |
| San Bernardino to Osimo | 6,242.16 mi (10,045.79 km) |
| San Bernardino to Ospitaletto | 6,024.55 mi (9,695.58 km) |
| San Bernardino to Ostuni | 6,520.70 mi (10,494.05 km) |
| San Bernardino to Ottaviano | 6,416.26 mi (10,325.98 km) |
| San Bernardino to Ovada | 6,025.57 mi (9,697.22 km) |
| San Bernardino to Ozieri | 6,245.96 mi (10,051.91 km) |
| San Bernardino to Paceco | 6,505.88 mi (10,470.21 km) |
