| Pornichet to Somma Lombardo | 536.08 mi (862.74 km) |
| Pornichet to Somma Vesuviana | 940.02 mi (1,512.82 km) |
| Pornichet to Sommacampagna | 641.49 mi (1,032.38 km) |
| Pornichet to Sona | 640.07 mi (1,030.09 km) |
| Pornichet to Sondrio | 582.71 mi (937.78 km) |
| Pornichet to Sora | 872.75 mi (1,404.56 km) |
| Pornichet to Sorbolo | 634.74 mi (1,021.51 km) |
| Pornichet to Soresina | 597.64 mi (961.81 km) |
| Pornichet to Sorisole | 579.62 mi (932.80 km) |
| Pornichet to Sorrento | 946.75 mi (1,523.65 km) |
| Pornichet to Sorso | 701.54 mi (1,129.03 km) |
| Pornichet to Sortino | 1,125.79 mi (1,811.78 km) |
| Pornichet to Soverato Marina | 1,119.62 mi (1,801.85 km) |
| Pornichet to Sovicille | 713.80 mi (1,148.76 km) |
| Pornichet to Spello | 787.61 mi (1,267.53 km) |
