| Petite-Synthe to Novi di Modena | 578.75 mi (931.40 km) |
| Petite-Synthe to Novi Ligure | 525.04 mi (844.97 km) |
| Petite-Synthe to Nuoro | 812.01 mi (1,306.81 km) |
| Petite-Synthe to Occhiobello | 599.10 mi (964.16 km) |
| Petite-Synthe to Oderzo | 588.64 mi (947.33 km) |
| Petite-Synthe to Oggiono | 483.39 mi (777.95 km) |
| Petite-Synthe to Olbia | 777.20 mi (1,250.78 km) |
| Petite-Synthe to Oleggio | 472.60 mi (760.57 km) |
| Petite-Synthe to Olgiate Comasco | 471.96 mi (759.54 km) |
| Petite-Synthe to Olgiate Olona | 477.81 mi (768.97 km) |
| Petite-Synthe to Omegna | 450.62 mi (725.20 km) |
| Petite-Synthe to Opera | 501.30 mi (806.77 km) |
| Petite-Synthe to Oppeano | 566.71 mi (912.03 km) |
| Petite-Synthe to Orbassano | 479.48 mi (771.66 km) |
| Petite-Synthe to Orbetello | 725.36 mi (1,167.36 km) |
