| Swindon to Cocentaina | 887.79 mi (1,428.76 km) |
| Swindon to Coin | 1,039.29 mi (1,672.58 km) |
| Swindon to Colindres | 569.34 mi (916.27 km) |
| Swindon to Collado-Villalba | 762.38 mi (1,226.93 km) |
| Swindon to Colmenar Viejo | 759.10 mi (1,221.65 km) |
| Swindon to Colmenarejo | 767.40 mi (1,235.02 km) |
| Swindon to Conil de la Frontera | 1,077.67 mi (1,734.34 km) |
| Swindon to Consuegra | 840.49 mi (1,352.64 km) |
| Swindon to Corbera de Llobregat | 722.47 mi (1,162.70 km) |
| Swindon to Cordoba | 956.08 mi (1,538.66 km) |
| Swindon to Coria del Rio | 1,008.23 mi (1,622.59 km) |
| Swindon to Crevillente | 920.93 mi (1,482.10 km) |
| Swindon to Cuarte de Huerva | 690.53 mi (1,111.30 km) |
| Swindon to Cubellas | 733.60 mi (1,180.61 km) |
| Swindon to Cuellar | 712.08 mi (1,145.99 km) |
