| East Rancho Dominguez to Orbetello | 6,268.15 mi (10,087.61 km) |
| East Rancho Dominguez to Oria | 6,577.34 mi (10,585.20 km) |
| East Rancho Dominguez to Oristano | 6,311.62 mi (10,157.58 km) |
| East Rancho Dominguez to Orta Nova | 6,471.79 mi (10,415.34 km) |
| East Rancho Dominguez to Orte | 6,305.09 mi (10,147.06 km) |
| East Rancho Dominguez to Ortona | 6,374.87 mi (10,259.37 km) |
| East Rancho Dominguez to Orvieto | 6,282.41 mi (10,110.56 km) |
| East Rancho Dominguez to Orzinuovi | 6,071.03 mi (9,770.37 km) |
| East Rancho Dominguez to Osimo | 6,284.62 mi (10,114.11 km) |
| East Rancho Dominguez to Ospitaletto | 6,067.33 mi (9,764.42 km) |
| East Rancho Dominguez to Ostuni | 6,562.69 mi (10,561.64 km) |
| East Rancho Dominguez to Ottaviano | 6,459.33 mi (10,395.29 km) |
| East Rancho Dominguez to Ovada | 6,069.13 mi (9,767.32 km) |
| East Rancho Dominguez to Ozieri | 6,290.90 mi (10,124.23 km) |
| East Rancho Dominguez to Paceco | 6,550.61 mi (10,542.18 km) |
