| Monfort Heights to Octeville | 3,946.87 mi (6,351.88 km) |
| Monfort Heights to Oignies | 4,109.21 mi (6,613.13 km) |
| Monfort Heights to Oissel | 4,066.70 mi (6,544.72 km) |
| Monfort Heights to Olivet | 4,144.78 mi (6,670.37 km) |
| Monfort Heights to Ollioules | 4,469.64 mi (7,193.19 km) |
| Monfort Heights to Olonne-sur-Mer | 4,030.02 mi (6,485.69 km) |
| Monfort Heights to Oloron-Sainte-Marie | 4,184.32 mi (6,734.01 km) |
| Monfort Heights to Onet Village | 4,286.67 mi (6,898.73 km) |
| Monfort Heights to Onnaing | 4,135.57 mi (6,655.56 km) |
| Monfort Heights to Orange | 4,389.93 mi (7,064.90 km) |
| Monfort Heights to Orchies | 4,118.94 mi (6,628.80 km) |
| Monfort Heights to Orleans | 4,143.93 mi (6,669.00 km) |
| Monfort Heights to Orly | 4,137.78 mi (6,659.12 km) |
| Monfort Heights to Ormesson-sur-Marne | 4,142.42 mi (6,666.57 km) |
| Monfort Heights to Orsay | 4,130.81 mi (6,647.90 km) |
