| San Giuliano Terme to Octeville | 700.18 mi (1,126.83 km) |
| San Giuliano Terme to Oignies | 580.21 mi (933.75 km) |
| San Giuliano Terme to Oissel | 587.43 mi (945.38 km) |
| San Giuliano Terme to Olivet | 499.01 mi (803.09 km) |
| San Giuliano Terme to Ollioules | 234.41 mi (377.25 km) |
| San Giuliano Terme to Olonne-sur-Mer | 624.51 mi (1,005.05 km) |
| San Giuliano Terme to Oloron-Sainte-Marie | 554.89 mi (893.01 km) |
| San Giuliano Terme to Onet Village | 391.70 mi (630.37 km) |
| San Giuliano Terme to Onnaing | 559.16 mi (899.88 km) |
| San Giuliano Terme to Orange | 281.28 mi (452.68 km) |
| San Giuliano Terme to Orchies | 573.52 mi (922.98 km) |
| San Giuliano Terme to Orleans | 500.08 mi (804.80 km) |
| San Giuliano Terme to Orly | 515.56 mi (829.71 km) |
| San Giuliano Terme to Ormesson-sur-Marne | 512.26 mi (824.40 km) |
| San Giuliano Terme to Orsay | 520.94 mi (838.37 km) |
