| Richmond Heights to Octeville | 3,716.59 mi (5,981.27 km) |
| Richmond Heights to Oignies | 3,878.07 mi (6,241.16 km) |
| Richmond Heights to Oissel | 3,836.17 mi (6,173.72 km) |
| Richmond Heights to Olivet | 3,914.82 mi (6,300.29 km) |
| Richmond Heights to Ollioules | 4,241.59 mi (6,826.18 km) |
| Richmond Heights to Olonne-sur-Mer | 3,801.64 mi (6,118.16 km) |
| Richmond Heights to Oloron-Sainte-Marie | 3,958.36 mi (6,370.36 km) |
| Richmond Heights to Onet Village | 4,058.72 mi (6,531.87 km) |
| Richmond Heights to Onnaing | 3,904.40 mi (6,283.53 km) |
| Richmond Heights to Orange | 4,161.51 mi (6,697.30 km) |
| Richmond Heights to Orchies | 3,887.79 mi (6,256.79 km) |
| Richmond Heights to Orleans | 3,913.95 mi (6,298.89 km) |
| Richmond Heights to Orly | 3,907.33 mi (6,288.24 km) |
| Richmond Heights to Ormesson-sur-Marne | 3,911.93 mi (6,295.64 km) |
| Richmond Heights to Orsay | 3,900.41 mi (6,277.11 km) |
