| Cascais to Gaeta | 1,225.91 mi (1,972.92 km) |
| Cascais to Gaggiano | 1,050.58 mi (1,690.75 km) |
| Cascais to Galatina | 1,469.56 mi (2,365.03 km) |
| Cascais to Galatone | 1,464.40 mi (2,356.73 km) |
| Cascais to Galbiate | 1,075.77 mi (1,731.28 km) |
| Cascais to Gallarate | 1,045.76 mi (1,682.99 km) |
| Cascais to Galliate | 1,037.19 mi (1,669.20 km) |
| Cascais to Gallipoli | 1,461.03 mi (2,351.30 km) |
| Cascais to Gambettola | 1,183.46 mi (1,904.59 km) |
| Cascais to Gambolo | 1,039.42 mi (1,672.78 km) |
| Cascais to Garbagnate Milanese | 1,056.76 mi (1,700.68 km) |
| Cascais to Gardone Val Trompia | 1,109.39 mi (1,785.39 km) |
| Cascais to Garlasco | 1,040.47 mi (1,674.47 km) |
| Cascais to Gassino Torinese | 988.73 mi (1,591.21 km) |
| Cascais to Gatteo | 1,185.68 mi (1,908.16 km) |
