| Kyustendil to Somma Lombardo | 732.65 mi (1,179.08 km) |
| Kyustendil to Somma Vesuviana | 437.03 mi (703.33 km) |
| Kyustendil to Sommacampagna | 627.06 mi (1,009.15 km) |
| Kyustendil to Sona | 628.47 mi (1,011.43 km) |
| Kyustendil to Sondrio | 687.87 mi (1,107.02 km) |
| Kyustendil to Sora | 466.96 mi (751.49 km) |
| Kyustendil to Sorbolo | 636.90 mi (1,024.99 km) |
| Kyustendil to Soresina | 671.73 mi (1,081.04 km) |
| Kyustendil to Sorisole | 688.95 mi (1,108.77 km) |
| Kyustendil to Sorrento | 445.04 mi (716.22 km) |
| Kyustendil to Sorso | 735.81 mi (1,184.17 km) |
| Kyustendil to Sortino | 538.34 mi (866.37 km) |
| Kyustendil to Soverato Marina | 406.95 mi (654.92 km) |
| Kyustendil to Sovicille | 584.25 mi (940.26 km) |
| Kyustendil to Spello | 510.89 mi (822.19 km) |
