| Union Park to Orbetello | 5,032.98 mi (8,099.80 km) |
| Union Park to Oria | 5,390.61 mi (8,675.36 km) |
| Union Park to Oristano | 4,975.66 mi (8,007.56 km) |
| Union Park to Orta Nova | 5,275.16 mi (8,489.56 km) |
| Union Park to Orte | 5,087.20 mi (8,187.07 km) |
| Union Park to Ortona | 5,183.79 mi (8,342.51 km) |
| Union Park to Orvieto | 5,067.16 mi (8,154.81 km) |
| Union Park to Orzinuovi | 4,895.91 mi (7,879.20 km) |
| Union Park to Osimo | 5,108.84 mi (8,221.89 km) |
| Union Park to Ospitaletto | 4,898.25 mi (7,882.97 km) |
| Union Park to Ostuni | 5,380.86 mi (8,659.65 km) |
| Union Park to Ottaviano | 5,231.88 mi (8,419.90 km) |
| Union Park to Ovada | 4,856.54 mi (7,815.84 km) |
| Union Park to Ozieri | 4,977.69 mi (8,010.82 km) |
| Union Park to Paceco | 5,223.92 mi (8,407.09 km) |
