| Sintra to Grottaferrata | 1,177.38 mi (1,894.80 km) |
| Sintra to Grottaglie | 1,426.05 mi (2,295.00 km) |
| Sintra to Grottammare | 1,244.20 mi (2,002.35 km) |
| Sintra to Grugliasco | 971.07 mi (1,562.79 km) |
| Sintra to Grumo Appula | 1,385.93 mi (2,230.44 km) |
| Sintra to Grumo Nevano | 1,259.22 mi (2,026.51 km) |
| Sintra to Gualdo Tadino | 1,191.83 mi (1,918.07 km) |
| Sintra to Guardiagrele | 1,258.01 mi (2,024.58 km) |
| Sintra to Guastalla | 1,111.51 mi (1,788.81 km) |
| Sintra to Gubbio | 1,182.11 mi (1,902.42 km) |
| Sintra to Guspini | 965.12 mi (1,553.21 km) |
| Sintra to Gussago | 1,101.12 mi (1,772.08 km) |
| Sintra to Iesi | 1,217.17 mi (1,958.85 km) |
| Sintra to Iesolo | 1,215.52 mi (1,956.19 km) |
| Sintra to Iglesias | 960.61 mi (1,545.96 km) |
