| West Puente Valley to Orbetello | 6,251.83 mi (10,061.35 km) |
| West Puente Valley to Oria | 6,561.25 mi (10,559.31 km) |
| West Puente Valley to Oristano | 6,295.08 mi (10,130.96 km) |
| West Puente Valley to Orta Nova | 6,455.63 mi (10,389.34 km) |
| West Puente Valley to Orte | 6,288.83 mi (10,120.89 km) |
| West Puente Valley to Ortona | 6,358.71 mi (10,233.35 km) |
| West Puente Valley to Orvieto | 6,266.15 mi (10,084.39 km) |
| West Puente Valley to Orzinuovi | 6,054.81 mi (9,744.28 km) |
| West Puente Valley to Osimo | 6,268.46 mi (10,088.12 km) |
| West Puente Valley to Ospitaletto | 6,051.13 mi (9,738.35 km) |
| West Puente Valley to Ostuni | 6,546.61 mi (10,535.75 km) |
| West Puente Valley to Ottaviano | 6,443.09 mi (10,369.15 km) |
| West Puente Valley to Ovada | 6,052.82 mi (9,741.07 km) |
| West Puente Valley to Ozieri | 6,274.41 mi (10,097.68 km) |
| West Puente Valley to Paceco | 6,534.14 mi (10,515.68 km) |
