| Castellammare del Golfo to Savona | 490.46 mi (789.32 km) |
| Castellammare del Golfo to Scafati | 207.88 mi (334.55 km) |
| Castellammare del Golfo to Scalea | 199.80 mi (321.55 km) |
| Castellammare del Golfo to Scandiano | 467.68 mi (752.66 km) |
| Castellammare del Golfo to Scandicci | 405.48 mi (652.55 km) |
| Castellammare del Golfo to Schio | 536.70 mi (863.73 km) |
| Castellammare del Golfo to Sciacca | 37.50 mi (60.35 km) |
| Castellammare del Golfo to Scicli | 131.45 mi (211.54 km) |
| Castellammare del Golfo to Scordia | 118.83 mi (191.24 km) |
| Castellammare del Golfo to Scorze | 522.85 mi (841.44 km) |
| Castellammare del Golfo to Sedico | 560.41 mi (901.89 km) |
| Castellammare del Golfo to Sedriano | 553.13 mi (890.17 km) |
| Castellammare del Golfo to Segni | 252.77 mi (406.79 km) |
| Castellammare del Golfo to Segrate | 547.64 mi (881.34 km) |
| Castellammare del Golfo to Selargius | 217.91 mi (350.69 km) |
