| Os to Selargius | 1,457.87 mi (2,346.22 km) |
| Os to Selvazzano Dentro | 1,057.73 mi (1,702.25 km) |
| Os to Senago | 1,022.80 mi (1,646.04 km) |
| Os to Senigallia | 1,185.71 mi (1,908.22 km) |
| Os to Seravezza | 1,138.47 mi (1,832.20 km) |
| Os to Seregno | 1,018.63 mi (1,639.33 km) |
| Os to Seriate | 1,019.64 mi (1,640.96 km) |
| Os to Sermoneta | 1,329.27 mi (2,139.25 km) |
| Os to Serramanna | 1,445.13 mi (2,325.72 km) |
| Os to Serravalle Pistoiese | 1,149.89 mi (1,850.56 km) |
| Os to Sessa Aurunca | 1,360.86 mi (2,190.10 km) |
| Os to Sesto Calende | 1,009.70 mi (1,624.96 km) |
| Os to Sesto Fiorentino | 1,157.48 mi (1,862.78 km) |
| Os to Sesto San Giovanni | 1,026.83 mi (1,652.53 km) |
| Os to Sestri Levante | 1,114.19 mi (1,793.11 km) |
