| Didcot to Cutrofiano | 1,220.07 mi (1,963.51 km) |
| Didcot to Dalmine | 642.62 mi (1,034.20 km) |
| Didcot to Deruta | 871.79 mi (1,403.01 km) |
| Didcot to Desenzano del Garda | 684.20 mi (1,101.11 km) |
| Didcot to Desio | 630.95 mi (1,015.42 km) |
| Didcot to Dolianova | 981.71 mi (1,579.91 km) |
| Didcot to Dolo | 742.31 mi (1,194.64 km) |
| Didcot to Domodossola | 575.03 mi (925.43 km) |
| Didcot to Dorgali | 936.20 mi (1,506.67 km) |
| Didcot to Dueville | 713.66 mi (1,148.53 km) |
| Didcot to Eboli | 1,084.35 mi (1,745.09 km) |
| Didcot to Elmas | 985.65 mi (1,586.26 km) |
| Didcot to Empoli | 784.83 mi (1,263.06 km) |
| Didcot to Enna | 1,229.32 mi (1,978.40 km) |
| Didcot to Eraclea | 758.36 mi (1,220.46 km) |
