| Saint-Pol-sur-Mer to Oria | 1,031.75 mi (1,660.44 km) |
| Saint-Pol-sur-Mer to Oristano | 825.42 mi (1,328.39 km) |
| Saint-Pol-sur-Mer to Orta Nova | 923.60 mi (1,486.39 km) |
| Saint-Pol-sur-Mer to Orte | 758.02 mi (1,219.92 km) |
| Saint-Pol-sur-Mer to Ortona | 826.37 mi (1,329.92 km) |
| Saint-Pol-sur-Mer to Orvieto | 735.37 mi (1,183.46 km) |
| Saint-Pol-sur-Mer to Orzinuovi | 522.41 mi (840.74 km) |
| Saint-Pol-sur-Mer to Osimo | 736.62 mi (1,185.48 km) |
| Saint-Pol-sur-Mer to Ospitaletto | 518.50 mi (834.44 km) |
| Saint-Pol-sur-Mer to Ostuni | 1,017.76 mi (1,637.93 km) |
| Saint-Pol-sur-Mer to Ottaviano | 911.22 mi (1,466.47 km) |
| Saint-Pol-sur-Mer to Ovada | 529.19 mi (851.66 km) |
| Saint-Pol-sur-Mer to Ozieri | 789.04 mi (1,269.84 km) |
| Saint-Pol-sur-Mer to Paceco | 1,030.08 mi (1,657.76 km) |
| Saint-Pol-sur-Mer to Pachino | 1,171.80 mi (1,885.84 km) |
