| Pornichet to Novi di Modena | 654.53 mi (1,053.37 km) |
| Pornichet to Novi Ligure | 560.67 mi (902.31 km) |
| Pornichet to Nuoro | 753.25 mi (1,212.24 km) |
| Pornichet to Occhiobello | 685.39 mi (1,103.04 km) |
| Pornichet to Oderzo | 711.47 mi (1,145.00 km) |
| Pornichet to Oggiono | 564.53 mi (908.52 km) |
| Pornichet to Olbia | 731.93 mi (1,177.93 km) |
| Pornichet to Oleggio | 534.58 mi (860.32 km) |
| Pornichet to Olgiate Comasco | 546.67 mi (879.78 km) |
| Pornichet to Olgiate Olona | 545.54 mi (877.97 km) |
| Pornichet to Omegna | 518.94 mi (835.15 km) |
| Pornichet to Opera | 565.97 mi (910.84 km) |
| Pornichet to Oppeano | 658.97 mi (1,060.51 km) |
| Pornichet to Orbassano | 497.55 mi (800.73 km) |
| Pornichet to Orbetello | 741.49 mi (1,193.32 km) |
