| Castel Gandolfo to Sala Consilina | 179.54 mi (288.94 km) |
| Castel Gandolfo to Salemi | 271.66 mi (437.20 km) |
| Castel Gandolfo to Salerno | 132.02 mi (212.46 km) |
| Castel Gandolfo to Salo | 286.48 mi (461.04 km) |
| Castel Gandolfo to Salsomaggiore Terme | 250.96 mi (403.89 km) |
| Castel Gandolfo to Saluzzo | 328.05 mi (527.95 km) |
| Castel Gandolfo to Salzano | 262.98 mi (423.22 km) |
| Castel Gandolfo to Samarate | 329.84 mi (530.83 km) |
| Castel Gandolfo to San Benedetto del Tronto | 104.23 mi (167.74 km) |
| Castel Gandolfo to San Biagio di Callalta | 272.55 mi (438.62 km) |
| Castel Gandolfo to San Bonifacio | 261.53 mi (420.88 km) |
| Castel Gandolfo to San Casciano in Val di Pesa | 151.51 mi (243.83 km) |
| Castel Gandolfo to San Cataldo | 302.98 mi (487.60 km) |
| Castel Gandolfo to San Cesareo | 9.03 mi (14.53 km) |
| Castel Gandolfo to San Dona di Piave | 268.32 mi (431.82 km) |
