| Santarem to Sestu | 949.46 mi (1,528.01 km) |
| Santarem to Settimo Torinese | 933.44 mi (1,502.23 km) |
| Santarem to Seveso | 1,007.99 mi (1,622.20 km) |
| Santarem to Sezze | 1,152.67 mi (1,855.05 km) |
| Santarem to Siano | 1,238.22 mi (1,992.72 km) |
| Santarem to Siena | 1,074.12 mi (1,728.64 km) |
| Santarem to Signa | 1,067.91 mi (1,718.63 km) |
| Santarem to Silea | 1,153.82 mi (1,856.89 km) |
| Santarem to Silvi Paese | 1,208.98 mi (1,945.66 km) |
| Santarem to Sinalunga | 1,093.17 mi (1,759.29 km) |
| Santarem to Siniscola | 976.92 mi (1,572.20 km) |
| Santarem to Sinnai | 955.36 mi (1,537.51 km) |
| Santarem to Siracusa | 1,307.27 mi (2,103.85 km) |
| Santarem to Solaro | 1,004.89 mi (1,617.21 km) |
| Santarem to Soliera | 1,073.25 mi (1,727.23 km) |
