| Didcot to Deville-les-Rouen | 178.60 mi (287.43 km) |
| Didcot to Dieppe | 154.45 mi (248.56 km) |
| Didcot to Digne-les-Bains | 623.52 mi (1,003.46 km) |
| Didcot to Dijon | 408.13 mi (656.82 km) |
| Didcot to Dinan | 220.61 mi (355.04 km) |
| Didcot to Dinard | 208.64 mi (335.77 km) |
| Didcot to Divonne-les-Bains | 493.13 mi (793.62 km) |
| Didcot to Dole | 434.43 mi (699.15 km) |
| Didcot to Dombasle-sur-Meurthe | 394.07 mi (634.20 km) |
| Didcot to Domerat | 400.70 mi (644.87 km) |
| Didcot to Domont | 237.67 mi (382.50 km) |
| Didcot to Douai | 206.34 mi (332.07 km) |
| Didcot to Douarnenez | 279.02 mi (449.04 km) |
| Didcot to Douchy-les-Mines | 220.88 mi (355.47 km) |
| Didcot to Dourdan | 256.85 mi (413.36 km) |
