| Castellanza to Sala Consilina | 494.13 mi (795.22 km) |
| Castellanza to Salemi | 575.05 mi (925.45 km) |
| Castellanza to Salerno | 450.93 mi (725.70 km) |
| Castellanza to Salo | 78.95 mi (127.06 km) |
| Castellanza to Salsomaggiore Terme | 76.36 mi (122.89 km) |
| Castellanza to Saluzzo | 96.04 mi (154.56 km) |
| Castellanza to Salzano | 155.67 mi (250.52 km) |
| Castellanza to Samarate | 5.64 mi (9.08 km) |
| Castellanza to San Benedetto del Tronto | 307.65 mi (495.11 km) |
| Castellanza to San Biagio di Callalta | 168.20 mi (270.70 km) |
| Castellanza to San Bonifacio | 116.36 mi (187.27 km) |
| Castellanza to San Casciano in Val di Pesa | 175.95 mi (283.17 km) |
| Castellanza to San Cataldo | 620.07 mi (997.90 km) |
| Castellanza to San Cesareo | 326.81 mi (525.96 km) |
| Castellanza to San Dona di Piave | 177.04 mi (284.92 km) |
