| Ilioupoli to Somma Lombardo | 939.59 mi (1,512.13 km) |
| Ilioupoli to Somma Vesuviana | 536.73 mi (863.78 km) |
| Ilioupoli to Sommacampagna | 840.55 mi (1,352.74 km) |
| Ilioupoli to Sona | 842.49 mi (1,355.86 km) |
| Ilioupoli to Sondrio | 909.30 mi (1,463.38 km) |
| Ilioupoli to Sora | 597.36 mi (961.35 km) |
| Ilioupoli to Sorbolo | 837.07 mi (1,347.13 km) |
| Ilioupoli to Soresina | 877.34 mi (1,411.95 km) |
| Ilioupoli to Sorisole | 901.77 mi (1,451.25 km) |
| Ilioupoli to Sorrento | 534.57 mi (860.31 km) |
| Ilioupoli to Sorso | 833.13 mi (1,340.79 km) |
| Ilioupoli to Sortino | 480.24 mi (772.87 km) |
| Ilioupoli to Soverato Marina | 393.68 mi (633.56 km) |
| Ilioupoli to Sovicille | 752.31 mi (1,210.72 km) |
| Ilioupoli to Spello | 678.24 mi (1,091.52 km) |
