| Mongat to Octeville | 594.68 mi (957.05 km) |
| Mongat to Oignies | 622.95 mi (1,002.54 km) |
| Mongat to Oissel | 547.15 mi (880.55 km) |
| Mongat to Olivet | 442.39 mi (711.96 km) |
| Mongat to Ollioules | 215.84 mi (347.36 km) |
| Mongat to Olonne-sur-Mer | 403.89 mi (650.00 km) |
| Mongat to Oloron-Sainte-Marie | 189.64 mi (305.20 km) |
| Mongat to Onet Village | 200.93 mi (323.36 km) |
| Mongat to Onnaing | 619.61 mi (997.17 km) |
| Mongat to Orange | 224.77 mi (361.73 km) |
| Mongat to Orchies | 624.10 mi (1,004.39 km) |
| Mongat to Orleans | 445.04 mi (716.22 km) |
| Mongat to Orly | 502.84 mi (809.24 km) |
| Mongat to Ormesson-sur-Marne | 505.86 mi (814.10 km) |
| Mongat to Orsay | 499.66 mi (804.13 km) |
