| Didcot to Fuente-Alamo de Murcia | 958.09 mi (1,541.90 km) |
| Didcot to Galapagar | 773.32 mi (1,244.54 km) |
| Didcot to Galdacano | 583.49 mi (939.03 km) |
| Didcot to Gandia | 874.78 mi (1,407.82 km) |
| Didcot to Garrucha | 996.85 mi (1,604.28 km) |
| Didcot to Gava | 727.95 mi (1,171.53 km) |
| Didcot to Gelves | 1,013.31 mi (1,630.77 km) |
| Didcot to Getafe | 789.83 mi (1,271.10 km) |
| Didcot to Gibraleon | 1,022.18 mi (1,645.04 km) |
| Didcot to Gijon | 594.96 mi (957.49 km) |
| Didcot to Gines | 1,010.34 mi (1,625.99 km) |
| Didcot to Girona | 691.73 mi (1,113.24 km) |
| Didcot to Godella | 836.01 mi (1,345.43 km) |
| Didcot to Gondomar | 745.15 mi (1,199.20 km) |
| Didcot to Grado | 610.63 mi (982.72 km) |
