| Northolt to Grottaferrata | 912.17 mi (1,467.99 km) |
| Northolt to Grottaglie | 1,138.24 mi (1,831.83 km) |
| Northolt to Grottammare | 888.85 mi (1,430.46 km) |
| Northolt to Grugliasco | 577.04 mi (928.66 km) |
| Northolt to Grumo Appula | 1,087.73 mi (1,750.53 km) |
| Northolt to Grumo Nevano | 1,009.76 mi (1,625.05 km) |
| Northolt to Gualdo Tadino | 839.38 mi (1,350.86 km) |
| Northolt to Guardiagrele | 941.12 mi (1,514.59 km) |
| Northolt to Guastalla | 682.68 mi (1,098.67 km) |
| Northolt to Gubbio | 826.09 mi (1,329.46 km) |
| Northolt to Guspini | 935.81 mi (1,506.04 km) |
| Northolt to Gussago | 631.46 mi (1,016.24 km) |
| Northolt to Iesi | 840.39 mi (1,352.48 km) |
| Northolt to Iesolo | 724.35 mi (1,165.73 km) |
| Northolt to Iglesias | 947.26 mi (1,524.47 km) |
