| Leiria to Solofra | 1,244.86 mi (2,003.40 km) |
| Leiria to Somma Lombardo | 975.66 mi (1,570.18 km) |
| Leiria to Somma Vesuviana | 1,223.13 mi (1,968.43 km) |
| Leiria to Sommacampagna | 1,069.86 mi (1,721.78 km) |
| Leiria to Sona | 1,069.65 mi (1,721.44 km) |
| Leiria to Sondrio | 1,039.67 mi (1,673.19 km) |
| Leiria to Sora | 1,178.11 mi (1,895.98 km) |
| Leiria to Sorbolo | 1,041.77 mi (1,676.57 km) |
| Leiria to Soresina | 1,021.25 mi (1,643.54 km) |
| Leiria to Sorisole | 1,020.71 mi (1,642.67 km) |
| Leiria to Sorrento | 1,221.11 mi (1,965.19 km) |
| Leiria to Sorso | 917.40 mi (1,476.41 km) |
| Leiria to Sortino | 1,297.87 mi (2,088.71 km) |
| Leiria to Soverato Marina | 1,354.48 mi (2,179.83 km) |
| Leiria to Sovicille | 1,061.97 mi (1,709.07 km) |
