| Swallownest to Cocentaina | 1,010.83 mi (1,626.77 km) |
| Swallownest to Coin | 1,165.28 mi (1,875.33 km) |
| Swallownest to Colindres | 695.33 mi (1,119.03 km) |
| Swallownest to Collado-Villalba | 888.37 mi (1,429.69 km) |
| Swallownest to Colmenar Viejo | 885.08 mi (1,424.40 km) |
| Swallownest to Colmenarejo | 893.39 mi (1,437.77 km) |
| Swallownest to Conil de la Frontera | 1,203.32 mi (1,936.56 km) |
| Swallownest to Consuegra | 966.42 mi (1,555.31 km) |
| Swallownest to Corbera de Llobregat | 839.06 mi (1,350.33 km) |
| Swallownest to Cordoba | 1,082.03 mi (1,741.37 km) |
| Swallownest to Coria del Rio | 1,133.79 mi (1,824.65 km) |
| Swallownest to Crevillente | 1,044.54 mi (1,681.03 km) |
| Swallownest to Cuarte de Huerva | 814.07 mi (1,310.12 km) |
| Swallownest to Cubellas | 851.13 mi (1,369.75 km) |
| Swallownest to Cuellar | 838.00 mi (1,348.63 km) |
