| Didcot to Giovinazzo | 1,111.32 mi (1,788.50 km) |
| Didcot to Giugliano in Campania | 1,038.78 mi (1,671.75 km) |
| Didcot to Giulianova | 936.61 mi (1,507.33 km) |
| Didcot to Giussano | 626.92 mi (1,008.92 km) |
| Didcot to Goito | 699.17 mi (1,125.20 km) |
| Didcot to Gonzaga | 718.76 mi (1,156.74 km) |
| Didcot to Gorgonzola | 641.31 mi (1,032.09 km) |
| Didcot to Gorizia | 779.82 mi (1,255.00 km) |
| Didcot to Gragnano | 1,062.01 mi (1,709.14 km) |
| Didcot to Grammichele | 1,260.29 mi (2,028.24 km) |
| Didcot to Granarolo del l'Emilia | 760.31 mi (1,223.60 km) |
| Didcot to Gravina in Puglia | 1,120.96 mi (1,804.01 km) |
| Didcot to Grezzana | 699.34 mi (1,125.48 km) |
| Didcot to Gricignano d'Aversa | 1,034.75 mi (1,665.26 km) |
| Didcot to Grosseto | 839.71 mi (1,351.39 km) |
