| Didcot to Campo de Criptana | 848.15 mi (1,364.97 km) |
| Didcot to Campos del Puerto | 865.77 mi (1,393.32 km) |
| Didcot to Canals | 874.25 mi (1,406.97 km) |
| Didcot to Candelaria | 1,786.99 mi (2,875.88 km) |
| Didcot to Canet de Mar | 715.12 mi (1,150.87 km) |
| Didcot to Cangas | 736.10 mi (1,184.64 km) |
| Didcot to Cangas de Narcea | 632.86 mi (1,018.49 km) |
| Didcot to Canovellas | 709.87 mi (1,142.43 km) |
| Didcot to Canteras | 966.93 mi (1,556.12 km) |
| Didcot to Cantillana | 993.05 mi (1,598.16 km) |
| Didcot to Capdepera | 852.58 mi (1,372.10 km) |
| Didcot to Carballo | 675.28 mi (1,086.76 km) |
| Didcot to Carcagente | 863.39 mi (1,389.49 km) |
| Didcot to Cardedeu | 709.19 mi (1,141.33 km) |
| Didcot to Carlet | 856.05 mi (1,377.68 km) |
