| Sintra to Giovinazzo | 1,383.80 mi (2,227.00 km) |
| Sintra to Giugliano in Campania | 1,255.51 mi (2,020.55 km) |
| Sintra to Giulianova | 1,246.97 mi (2,006.80 km) |
| Sintra to Giussano | 1,060.83 mi (1,707.23 km) |
| Sintra to Goito | 1,117.81 mi (1,798.94 km) |
| Sintra to Gonzaga | 1,119.20 mi (1,801.17 km) |
| Sintra to Gorgonzola | 1,065.29 mi (1,714.42 km) |
| Sintra to Gorizia | 1,267.87 mi (2,040.43 km) |
| Sintra to Gragnano | 1,272.64 mi (2,048.12 km) |
| Sintra to Grammichele | 1,308.73 mi (2,106.20 km) |
| Sintra to Granarolo del l'Emilia | 1,142.57 mi (1,838.79 km) |
| Sintra to Gravina in Puglia | 1,371.74 mi (2,207.60 km) |
| Sintra to Grezzana | 1,139.36 mi (1,833.62 km) |
| Sintra to Gricignano d'Aversa | 1,254.79 mi (2,019.39 km) |
| Sintra to Grosseto | 1,103.33 mi (1,775.64 km) |
