| Didcot to Genas | 495.49 mi (797.42 km) |
| Didcot to Gennevilliers | 241.93 mi (389.34 km) |
| Didcot to Gentilly | 249.67 mi (401.81 km) |
| Didcot to Gerzat | 446.42 mi (718.45 km) |
| Didcot to Gex | 491.78 mi (791.44 km) |
| Didcot to Gien | 320.54 mi (515.86 km) |
| Didcot to Gif-sur-Yvette | 250.12 mi (402.52 km) |
| Didcot to Gignac-la-Nerthe | 642.36 mi (1,033.78 km) |
| Didcot to Gisors | 208.39 mi (335.37 km) |
| Didcot to Givors | 497.78 mi (801.09 km) |
| Didcot to Golbey | 414.73 mi (667.44 km) |
| Didcot to Gonesse | 243.38 mi (391.68 km) |
| Didcot to Gonfreville-l'Orcher | 158.91 mi (255.74 km) |
| Didcot to Goussainville | 241.78 mi (389.11 km) |
| Didcot to Gouvieux | 232.02 mi (373.41 km) |
