| Ploermel to Somma Lombardo | 546.76 mi (879.93 km) |
| Ploermel to Somma Vesuviana | 960.54 mi (1,545.84 km) |
| Ploermel to Sommacampagna | 651.11 mi (1,047.86 km) |
| Ploermel to Sona | 649.55 mi (1,045.35 km) |
| Ploermel to Sondrio | 589.53 mi (948.75 km) |
| Ploermel to Sora | 892.13 mi (1,435.75 km) |
| Ploermel to Sorbolo | 647.33 mi (1,041.78 km) |
| Ploermel to Soresina | 608.93 mi (979.97 km) |
| Ploermel to Sorisole | 588.89 mi (947.73 km) |
| Ploermel to Sorrento | 967.95 mi (1,557.77 km) |
| Ploermel to Sorso | 731.35 mi (1,177.00 km) |
| Ploermel to Sortino | 1,153.02 mi (1,855.60 km) |
| Ploermel to Soverato Marina | 1,142.24 mi (1,838.26 km) |
| Ploermel to Sovicille | 731.58 mi (1,177.36 km) |
| Ploermel to Spello | 804.40 mi (1,294.56 km) |
