| San Severino Marche to Somma Lombardo | 278.33 mi (447.94 km) |
| San Severino Marche to Somma Vesuviana | 175.17 mi (281.90 km) |
| San Severino Marche to Sommacampagna | 189.03 mi (304.21 km) |
| San Severino Marche to Sona | 191.34 mi (307.93 km) |
| San Severino Marche to Sondrio | 260.08 mi (418.55 km) |
| San Severino Marche to Sora | 106.86 mi (171.97 km) |
| San Severino Marche to Sorbolo | 175.64 mi (282.66 km) |
| San Severino Marche to Soresina | 217.23 mi (349.60 km) |
| San Severino Marche to Sorisole | 245.23 mi (394.67 km) |
| San Severino Marche to Sorrento | 189.95 mi (305.69 km) |
| San Severino Marche to Sorso | 289.69 mi (466.22 km) |
| San Severino Marche to Sortino | 430.13 mi (692.22 km) |
| San Severino Marche to Soverato Marina | 359.94 mi (579.27 km) |
| San Severino Marche to Sovicille | 97.88 mi (157.53 km) |
| San Severino Marche to Spello | 30.39 mi (48.91 km) |
