| Richmond Heights to Orbetello | 4,495.95 mi (7,235.52 km) |
| Richmond Heights to Oria | 4,842.97 mi (7,794.01 km) |
| Richmond Heights to Oristano | 4,482.25 mi (7,213.48 km) |
| Richmond Heights to Orta Nova | 4,728.45 mi (7,609.71 km) |
| Richmond Heights to Orte | 4,544.27 mi (7,313.30 km) |
| Richmond Heights to Ortona | 4,632.29 mi (7,454.95 km) |
| Richmond Heights to Orvieto | 4,522.56 mi (7,278.36 km) |
| Richmond Heights to Orzinuovi | 4,329.78 mi (6,968.10 km) |
| Richmond Heights to Osimo | 4,548.97 mi (7,320.85 km) |
| Richmond Heights to Ospitaletto | 4,329.70 mi (6,967.98 km) |
| Richmond Heights to Ostuni | 4,830.95 mi (7,774.66 km) |
| Richmond Heights to Ottaviano | 4,696.93 mi (7,558.97 km) |
| Richmond Heights to Ovada | 4,304.98 mi (6,928.20 km) |
| Richmond Heights to Ozieri | 4,473.81 mi (7,199.91 km) |
| Richmond Heights to Paceco | 4,732.53 mi (7,616.27 km) |
