| San Marcos to Solofra | 6,482.79 mi (10,433.04 km) |
| San Marcos to Somma Lombardo | 6,027.23 mi (9,699.89 km) |
| San Marcos to Somma Vesuviana | 6,467.17 mi (10,407.91 km) |
| San Marcos to Sommacampagna | 6,111.44 mi (9,835.41 km) |
| San Marcos to Sona | 6,109.18 mi (9,831.77 km) |
| San Marcos to Sondrio | 6,040.32 mi (9,720.96 km) |
| San Marcos to Sora | 6,395.06 mi (10,291.85 km) |
| San Marcos to Sorbolo | 6,127.18 mi (9,860.74 km) |
| San Marcos to Soresina | 6,085.26 mi (9,793.28 km) |
| San Marcos to Sorisole | 6,055.62 mi (9,745.58 km) |
| San Marcos to Sorrento | 6,478.26 mi (10,425.75 km) |
| San Marcos to Sorso | 6,270.73 mi (10,091.77 km) |
| San Marcos to Sortino | 6,686.91 mi (10,761.55 km) |
| San Marcos to Soverato Marina | 6,655.42 mi (10,710.86 km) |
| San Marcos to Sovicille | 6,234.03 mi (10,032.70 km) |
