| Cave to Octeville | 883.76 mi (1,422.27 km) |
| Cave to Oignies | 762.69 mi (1,227.43 km) |
| Cave to Oissel | 771.85 mi (1,242.17 km) |
| Cave to Olivet | 682.06 mi (1,097.67 km) |
| Cave to Ollioules | 372.37 mi (599.27 km) |
| Cave to Olonne-sur-Mer | 796.76 mi (1,282.25 km) |
| Cave to Oloron-Sainte-Marie | 695.43 mi (1,119.19 km) |
| Cave to Onet Village | 550.17 mi (885.41 km) |
| Cave to Onnaing | 740.88 mi (1,192.33 km) |
| Cave to Orange | 440.62 mi (709.11 km) |
| Cave to Orchies | 755.63 mi (1,216.06 km) |
| Cave to Orleans | 683.22 mi (1,099.54 km) |
| Cave to Orly | 700.00 mi (1,126.55 km) |
| Cave to Ormesson-sur-Marne | 696.73 mi (1,121.28 km) |
| Cave to Orsay | 705.32 mi (1,135.10 km) |
