| Caldas de Reyes to Octeville | 589.17 mi (948.18 km) |
| Caldas de Reyes to Oignies | 773.58 mi (1,244.95 km) |
| Caldas de Reyes to Oissel | 658.61 mi (1,059.94 km) |
| Caldas de Reyes to Olivet | 627.67 mi (1,010.14 km) |
| Caldas de Reyes to Ollioules | 733.52 mi (1,180.48 km) |
| Caldas de Reyes to Olonne-sur-Mer | 433.37 mi (697.45 km) |
| Caldas de Reyes to Oloron-Sainte-Marie | 408.41 mi (657.27 km) |
| Caldas de Reyes to Onet Village | 575.60 mi (926.33 km) |
| Caldas de Reyes to Onnaing | 790.66 mi (1,272.44 km) |
| Caldas de Reyes to Orange | 682.92 mi (1,099.05 km) |
| Caldas de Reyes to Orchies | 782.28 mi (1,258.96 km) |
| Caldas de Reyes to Orleans | 629.40 mi (1,012.92 km) |
| Caldas de Reyes to Orly | 679.77 mi (1,093.99 km) |
| Caldas de Reyes to Ormesson-sur-Marne | 686.88 mi (1,105.42 km) |
| Caldas de Reyes to Orsay | 670.28 mi (1,078.71 km) |
