| Tucson Mountains to Sestu | 6,180.82 mi (9,947.07 km) |
| Tucson Mountains to Settimo Torinese | 5,858.41 mi (9,428.20 km) |
| Tucson Mountains to Seveso | 5,883.76 mi (9,468.99 km) |
| Tucson Mountains to Sezze | 6,224.31 mi (10,017.06 km) |
| Tucson Mountains to Siano | 6,317.74 mi (10,167.41 km) |
| Tucson Mountains to Siena | 6,072.88 mi (9,773.36 km) |
| Tucson Mountains to Signa | 6,042.14 mi (9,723.88 km) |
| Tucson Mountains to Silea | 5,993.13 mi (9,645.01 km) |
| Tucson Mountains to Silvi Paese | 6,209.64 mi (9,993.46 km) |
| Tucson Mountains to Sinalunga | 6,092.21 mi (9,804.47 km) |
| Tucson Mountains to Siniscola | 6,143.84 mi (9,887.55 km) |
| Tucson Mountains to Sinnai | 6,185.02 mi (9,953.83 km) |
| Tucson Mountains to Siracusa | 6,527.62 mi (10,505.20 km) |
| Tucson Mountains to Solaro | 5,883.20 mi (9,468.09 km) |
| Tucson Mountains to Soliera | 5,989.94 mi (9,639.87 km) |
