| Didcot to Gaeta | 1,002.77 mi (1,613.80 km) |
| Didcot to Gaggiano | 635.20 mi (1,022.26 km) |
| Didcot to Galatina | 1,216.34 mi (1,957.52 km) |
| Didcot to Galatone | 1,213.59 mi (1,953.08 km) |
| Didcot to Galbiate | 627.90 mi (1,010.51 km) |
| Didcot to Gallarate | 614.10 mi (988.30 km) |
| Didcot to Galliate | 620.07 mi (997.91 km) |
| Didcot to Gallipoli | 1,215.69 mi (1,956.47 km) |
| Didcot to Gambettola | 812.45 mi (1,307.52 km) |
| Didcot to Gambolo | 636.87 mi (1,024.94 km) |
| Didcot to Garbagnate Milanese | 628.26 mi (1,011.09 km) |
| Didcot to Gardone Val Trompia | 661.65 mi (1,064.82 km) |
| Didcot to Garlasco | 641.56 mi (1,032.49 km) |
| Didcot to Gassino Torinese | 610.31 mi (982.20 km) |
| Didcot to Gatteo | 815.03 mi (1,311.67 km) |
