| West Carson to Sestu | 6,368.01 mi (10,248.32 km) |
| West Carson to Settimo Torinese | 6,022.23 mi (9,691.84 km) |
| West Carson to Seveso | 6,040.28 mi (9,720.89 km) |
| West Carson to Sezze | 6,385.94 mi (10,277.19 km) |
| West Carson to Siano | 6,476.10 mi (10,422.27 km) |
| West Carson to Siena | 6,232.64 mi (10,030.47 km) |
| West Carson to Signa | 6,200.56 mi (9,978.83 km) |
| West Carson to Silea | 6,138.23 mi (9,878.53 km) |
| West Carson to Silvi Paese | 6,362.32 mi (10,239.17 km) |
| West Carson to Sinalunga | 6,250.95 mi (10,059.93 km) |
| West Carson to Siniscola | 6,322.73 mi (10,175.45 km) |
| West Carson to Sinnai | 6,371.77 mi (10,254.38 km) |
| West Carson to Siracusa | 6,700.35 mi (10,783.17 km) |
| West Carson to Solaro | 6,040.04 mi (9,720.51 km) |
| West Carson to Soliera | 6,144.44 mi (9,888.52 km) |
