| Castellammare del Golfo to Selvazzano Dentro | 511.44 mi (823.08 km) |
| Castellammare del Golfo to Senago | 556.49 mi (895.58 km) |
| Castellammare del Golfo to Senigallia | 393.31 mi (632.97 km) |
| Castellammare del Golfo to Seravezza | 435.13 mi (700.28 km) |
| Castellammare del Golfo to Seregno | 559.61 mi (900.61 km) |
| Castellammare del Golfo to Seriate | 553.48 mi (890.74 km) |
| Castellammare del Golfo to Sermoneta | 243.52 mi (391.90 km) |
| Castellammare del Golfo to Serramanna | 234.17 mi (376.86 km) |
| Castellammare del Golfo to Serravalle Pistoiese | 419.61 mi (675.30 km) |
| Castellammare del Golfo to Sessa Aurunca | 228.54 mi (367.80 km) |
| Castellammare del Golfo to Sesto Calende | 575.36 mi (925.95 km) |
| Castellammare del Golfo to Sesto Fiorentino | 410.67 mi (660.91 km) |
| Castellammare del Golfo to Sesto San Giovanni | 551.51 mi (887.57 km) |
| Castellammare del Golfo to Sestri Levante | 468.08 mi (753.31 km) |
| Castellammare del Golfo to Sestu | 222.50 mi (358.08 km) |
