| Saint-Pierre-du-Mont to Oria | 956.04 mi (1,538.60 km) |
| Saint-Pierre-du-Mont to Oristano | 542.74 mi (873.46 km) |
| Saint-Pierre-du-Mont to Orta Nova | 842.54 mi (1,355.94 km) |
| Saint-Pierre-du-Mont to Orte | 657.00 mi (1,057.34 km) |
| Saint-Pierre-du-Mont to Ortona | 758.82 mi (1,221.20 km) |
| Saint-Pierre-du-Mont to Orvieto | 639.50 mi (1,029.18 km) |
| Saint-Pierre-du-Mont to Orzinuovi | 524.05 mi (843.38 km) |
| Saint-Pierre-du-Mont to Osimo | 699.37 mi (1,125.53 km) |
| Saint-Pierre-du-Mont to Ospitaletto | 532.31 mi (856.67 km) |
| Saint-Pierre-du-Mont to Ostuni | 948.14 mi (1,525.89 km) |
| Saint-Pierre-du-Mont to Ottaviano | 792.48 mi (1,275.37 km) |
| Saint-Pierre-du-Mont to Ovada | 456.30 mi (734.35 km) |
| Saint-Pierre-du-Mont to Ozieri | 537.36 mi (864.80 km) |
| Saint-Pierre-du-Mont to Paceco | 793.30 mi (1,276.69 km) |
| Saint-Pierre-du-Mont to Pachino | 958.14 mi (1,541.98 km) |
