| Didcot to Cuenca | 798.47 mi (1,285.02 km) |
| Didcot to Cuevas del Almanzora | 988.92 mi (1,591.51 km) |
| Didcot to Cullera | 860.98 mi (1,385.62 km) |
| Didcot to Culleredo | 663.98 mi (1,068.57 km) |
| Didcot to Cunit | 731.93 mi (1,177.93 km) |
| Didcot to Daganzo de Arriba | 771.61 mi (1,241.78 km) |
| Didcot to Daimiel | 872.77 mi (1,404.58 km) |
| Didcot to Don Benito | 902.07 mi (1,451.74 km) |
| Didcot to Donostia | 573.54 mi (923.02 km) |
| Didcot to Dos Hermanas | 1,015.63 mi (1,634.49 km) |
| Didcot to Durango | 586.53 mi (943.92 km) |
| Didcot to Ecija | 990.19 mi (1,593.56 km) |
| Didcot to Ejea de los Caballeros | 654.80 mi (1,053.80 km) |
| Didcot to El Alamo | 796.88 mi (1,282.45 km) |
| Didcot to El Arahal | 1,012.84 mi (1,630.01 km) |
