| Portalegre to Grottaferrata | 1,065.81 mi (1,715.25 km) |
| Portalegre to Grottaglie | 1,315.04 mi (2,116.35 km) |
| Portalegre to Grottammare | 1,132.60 mi (1,822.74 km) |
| Portalegre to Grugliasco | 862.46 mi (1,387.99 km) |
| Portalegre to Grumo Appula | 1,274.67 mi (2,051.38 km) |
| Portalegre to Grumo Nevano | 1,148.03 mi (1,847.58 km) |
| Portalegre to Gualdo Tadino | 1,080.31 mi (1,738.60 km) |
| Portalegre to Guardiagrele | 1,146.38 mi (1,844.91 km) |
| Portalegre to Guastalla | 1,001.55 mi (1,611.84 km) |
| Portalegre to Gubbio | 1,070.64 mi (1,723.03 km) |
| Portalegre to Guspini | 855.61 mi (1,376.97 km) |
| Portalegre to Gussago | 992.28 mi (1,596.92 km) |
| Portalegre to Iesi | 1,105.75 mi (1,779.53 km) |
| Portalegre to Iesolo | 1,105.84 mi (1,779.68 km) |
| Portalegre to Iglesias | 851.49 mi (1,370.34 km) |
