| Santarem to Solofra | 1,246.25 mi (2,005.64 km) |
| Santarem to Somma Lombardo | 989.11 mi (1,591.82 km) |
| Santarem to Somma Vesuviana | 1,224.56 mi (1,970.74 km) |
| Santarem to Sommacampagna | 1,081.64 mi (1,740.74 km) |
| Santarem to Sona | 1,081.51 mi (1,740.53 km) |
| Santarem to Sondrio | 1,053.55 mi (1,695.52 km) |
| Santarem to Sora | 1,181.28 mi (1,901.09 km) |
| Santarem to Sorbolo | 1,052.51 mi (1,693.84 km) |
| Santarem to Soresina | 1,033.21 mi (1,662.80 km) |
| Santarem to Sorisole | 1,033.77 mi (1,663.69 km) |
| Santarem to Sorrento | 1,222.03 mi (1,966.67 km) |
| Santarem to Sorso | 918.36 mi (1,477.97 km) |
| Santarem to Sortino | 1,292.06 mi (2,079.38 km) |
| Santarem to Soverato Marina | 1,352.00 mi (2,175.83 km) |
| Santarem to Sovicille | 1,068.89 mi (1,720.21 km) |
