| Saint-Doulchard to Oria | 884.89 mi (1,424.10 km) |
| Saint-Doulchard to Oristano | 586.24 mi (943.46 km) |
| Saint-Doulchard to Orta Nova | 769.94 mi (1,239.10 km) |
| Saint-Doulchard to Orte | 585.74 mi (942.66 km) |
| Saint-Doulchard to Ortona | 674.44 mi (1,085.41 km) |
| Saint-Doulchard to Orvieto | 563.89 mi (907.50 km) |
| Saint-Doulchard to Orzinuovi | 379.66 mi (611.00 km) |
| Saint-Doulchard to Osimo | 594.33 mi (956.49 km) |
| Saint-Doulchard to Ospitaletto | 382.40 mi (615.41 km) |
| Saint-Doulchard to Ostuni | 873.36 mi (1,405.54 km) |
| Saint-Doulchard to Ottaviano | 739.39 mi (1,189.94 km) |
| Saint-Doulchard to Ovada | 346.25 mi (557.24 km) |
| Saint-Doulchard to Ozieri | 557.94 mi (897.91 km) |
| Saint-Doulchard to Paceco | 814.15 mi (1,310.26 km) |
| Saint-Doulchard to Pachino | 968.58 mi (1,558.78 km) |
