| Castel Gandolfo to San Giovanni Rotondo | 158.93 mi (255.77 km) |
| Castel Gandolfo to San Giovanni Valdarno | 137.85 mi (221.85 km) |
| Castel Gandolfo to San Giuliano Milanese | 303.48 mi (488.41 km) |
| Castel Gandolfo to San Giuliano Terme | 178.79 mi (287.73 km) |
| Castel Gandolfo to San Giuseppe Iato | 262.70 mi (422.78 km) |
| Castel Gandolfo to San Giuseppe Vesuviano | 114.84 mi (184.82 km) |
| Castel Gandolfo to San Giustino | 126.84 mi (204.12 km) |
| Castel Gandolfo to San Gregorio di Catania | 317.15 mi (510.41 km) |
| Castel Gandolfo to San Lazzaro di Savena | 198.48 mi (319.43 km) |
| Castel Gandolfo to San Marco in Lamis | 153.83 mi (247.57 km) |
| Castel Gandolfo to San Martino Buon Albergo | 265.17 mi (426.76 km) |
| Castel Gandolfo to San Martino di Lupari | 272.95 mi (439.28 km) |
| Castel Gandolfo to San Marzano di San Giuseppe | 267.81 mi (431.00 km) |
| Castel Gandolfo to San Marzano sul Sarno | 121.41 mi (195.39 km) |
| Castel Gandolfo to San Maurizio Canavese | 347.52 mi (559.28 km) |
