| Acton to Sestu | 956.57 mi (1,539.44 km) |
| Acton to Settimo Torinese | 574.35 mi (924.33 km) |
| Acton to Seveso | 590.28 mi (949.97 km) |
| Acton to Sezze | 935.71 mi (1,505.89 km) |
| Acton to Siano | 1,026.04 mi (1,651.26 km) |
| Acton to Siena | 782.32 mi (1,259.03 km) |
| Acton to Signa | 750.29 mi (1,207.47 km) |
| Acton to Silea | 701.20 mi (1,128.47 km) |
| Acton to Silvi Paese | 914.97 mi (1,472.49 km) |
| Acton to Sinalunga | 800.67 mi (1,288.56 km) |
| Acton to Siniscola | 892.48 mi (1,436.30 km) |
| Acton to Sinnai | 958.89 mi (1,543.19 km) |
| Acton to Siracusa | 1,254.66 mi (2,019.18 km) |
| Acton to Solaro | 589.95 mi (949.43 km) |
| Acton to Soliera | 695.55 mi (1,119.38 km) |
