| Croix to Oignies | 16.00 mi (25.74 km) |
| Croix to Oissel | 129.93 mi (209.11 km) |
| Croix to Olivet | 202.44 mi (325.79 km) |
| Croix to Ollioules | 536.10 mi (862.76 km) |
| Croix to Olonne-sur-Mer | 363.83 mi (585.53 km) |
| Croix to Oloron-Sainte-Marie | 546.44 mi (879.41 km) |
| Croix to Onet Village | 436.92 mi (703.16 km) |
| Croix to Onnaing | 28.08 mi (45.18 km) |
| Croix to Orange | 458.43 mi (737.78 km) |
| Croix to Orchies | 14.64 mi (23.56 km) |
| Croix to Orleans | 199.77 mi (321.49 km) |
| Croix to Orly | 137.86 mi (221.87 km) |
| Croix to Ormesson-sur-Marne | 133.57 mi (214.97 km) |
| Croix to Orsay | 143.42 mi (230.81 km) |
| Croix to Orthez | 529.74 mi (852.54 km) |
