| Moreno Valley to Orbetello | 6,233.84 mi (10,032.40 km) |
| Moreno Valley to Oria | 6,545.12 mi (10,533.36 km) |
| Moreno Valley to Oristano | 6,274.88 mi (10,098.44 km) |
| Moreno Valley to Orta Nova | 6,439.02 mi (10,362.61 km) |
| Moreno Valley to Orte | 6,271.32 mi (10,092.72 km) |
| Moreno Valley to Ortona | 6,341.99 mi (10,206.44 km) |
| Moreno Valley to Orvieto | 6,248.65 mi (10,056.23 km) |
| Moreno Valley to Orzinuovi | 6,037.71 mi (9,716.75 km) |
| Moreno Valley to Osimo | 6,251.87 mi (10,061.42 km) |
| Moreno Valley to Ospitaletto | 6,034.15 mi (9,711.02 km) |
| Moreno Valley to Ostuni | 6,530.57 mi (10,509.93 km) |
| Moreno Valley to Ottaviano | 6,425.74 mi (10,341.22 km) |
| Moreno Valley to Ovada | 6,034.86 mi (9,712.17 km) |
| Moreno Valley to Ozieri | 6,254.68 mi (10,065.93 km) |
| Moreno Valley to Paceco | 6,514.69 mi (10,484.37 km) |
