| Richfield to Orbetello | 4,822.99 mi (7,761.85 km) |
| Richfield to Oria | 5,153.08 mi (8,293.09 km) |
| Richfield to Oristano | 4,841.70 mi (7,791.96 km) |
| Richfield to Orta Nova | 5,042.13 mi (8,114.53 km) |
| Richfield to Orte | 4,865.53 mi (7,830.32 km) |
| Richfield to Ortona | 4,944.61 mi (7,957.57 km) |
| Richfield to Orvieto | 4,843.09 mi (7,794.20 km) |
| Richfield to Orzinuovi | 4,638.27 mi (7,464.57 km) |
| Richfield to Osimo | 4,856.74 mi (7,816.16 km) |
| Richfield to Ospitaletto | 4,636.23 mi (7,461.29 km) |
| Richfield to Ostuni | 5,139.57 mi (8,271.34 km) |
| Richfield to Ottaviano | 5,020.50 mi (8,079.72 km) |
| Richfield to Ovada | 4,625.76 mi (7,444.44 km) |
| Richfield to Ozieri | 4,826.03 mi (7,766.74 km) |
| Richfield to Paceco | 5,087.30 mi (8,187.22 km) |
