| Castel Gandolfo to San Donato Milanese | 304.89 mi (490.67 km) |
| Castel Gandolfo to San Felice Circeo | 42.15 mi (67.84 km) |
| Castel Gandolfo to San Felice sul Panaro | 226.76 mi (364.93 km) |
| Castel Gandolfo to San Ferdinando di Puglia | 179.31 mi (288.57 km) |
| Castel Gandolfo to San Gavino Monreale | 252.93 mi (407.05 km) |
| Castel Gandolfo to San Gennaro Vesuviano | 115.03 mi (185.13 km) |
| Castel Gandolfo to San Giorgio a Cremano | 107.72 mi (173.36 km) |
| Castel Gandolfo to San Giorgio del Sannio | 123.22 mi (198.30 km) |
| Castel Gandolfo to San Giorgio di Piano | 210.51 mi (338.78 km) |
| Castel Gandolfo to San Giorgio Ionico | 261.29 mi (420.50 km) |
| Castel Gandolfo to San Giovanni in Fiore | 273.18 mi (439.64 km) |
| Castel Gandolfo to San Giovanni in Marignano | 151.51 mi (243.84 km) |
| Castel Gandolfo to San Giovanni in Persiceto | 213.16 mi (343.04 km) |
| Castel Gandolfo to San Giovanni la Punta | 315.73 mi (508.13 km) |
| Castel Gandolfo to San Giovanni Lupatoto | 263.98 mi (424.83 km) |
