| Richton Park to Orbetello | 4,756.46 mi (7,654.78 km) |
| Richton Park to Oria | 5,098.35 mi (8,205.00 km) |
| Richton Park to Oristano | 4,753.85 mi (7,650.59 km) |
| Richton Park to Orta Nova | 4,984.82 mi (8,022.29 km) |
| Richton Park to Orte | 4,802.87 mi (7,729.47 km) |
| Richton Park to Ortona | 4,887.92 mi (7,866.36 km) |
| Richton Park to Orvieto | 4,780.84 mi (7,694.02 km) |
| Richton Park to Orzinuovi | 4,583.23 mi (7,376.00 km) |
| Richton Park to Osimo | 4,802.75 mi (7,729.28 km) |
| Richton Park to Ospitaletto | 4,582.44 mi (7,374.73 km) |
| Richton Park to Ostuni | 5,085.76 mi (8,184.75 km) |
| Richton Park to Ottaviano | 4,956.72 mi (7,977.07 km) |
| Richton Park to Ovada | 4,562.78 mi (7,343.08 km) |
| Richton Park to Ozieri | 4,742.96 mi (7,633.06 km) |
| Richton Park to Paceco | 5,003.13 mi (8,051.76 km) |
