| Santa Clarita to Orbetello | 6,248.24 mi (10,055.57 km) |
| Santa Clarita to Oria | 6,555.85 mi (10,550.62 km) |
| Santa Clarita to Oristano | 6,293.65 mi (10,128.65 km) |
| Santa Clarita to Orta Nova | 6,450.71 mi (10,381.42 km) |
| Santa Clarita to Orte | 6,284.77 mi (10,114.36 km) |
| Santa Clarita to Ortona | 6,353.90 mi (10,225.61 km) |
| Santa Clarita to Orvieto | 6,262.08 mi (10,077.85 km) |
| Santa Clarita to Orzinuovi | 6,050.40 mi (9,737.17 km) |
| Santa Clarita to Osimo | 6,263.54 mi (10,080.20 km) |
| Santa Clarita to Ospitaletto | 6,046.59 mi (9,731.05 km) |
| Santa Clarita to Ostuni | 6,541.15 mi (10,526.96 km) |
| Santa Clarita to Ottaviano | 6,438.87 mi (10,362.36 km) |
| Santa Clarita to Ovada | 6,049.22 mi (9,735.27 km) |
| Santa Clarita to Ozieri | 6,272.50 mi (10,094.62 km) |
| Santa Clarita to Paceco | 6,531.94 mi (10,512.14 km) |
