| Security-Widefield to Cocentaina | 5,251.76 mi (8,451.90 km) |
| Security-Widefield to Coin | 5,154.50 mi (8,295.36 km) |
| Security-Widefield to Colindres | 4,931.76 mi (7,936.90 km) |
| Security-Widefield to Collado-Villalba | 5,021.93 mi (8,082.01 km) |
| Security-Widefield to Colmenar Viejo | 5,031.07 mi (8,096.72 km) |
| Security-Widefield to Colmenarejo | 5,024.56 mi (8,086.24 km) |
| Security-Widefield to Conil de la Frontera | 5,111.87 mi (8,226.76 km) |
| Security-Widefield to Consuegra | 5,087.48 mi (8,187.51 km) |
| Security-Widefield to Corbera de Llobregat | 5,232.29 mi (8,420.56 km) |
| Security-Widefield to Cordoba | 5,102.52 mi (8,211.71 km) |
| Security-Widefield to Coria del Rio | 5,071.52 mi (8,161.83 km) |
| Security-Widefield to Crevillente | 5,257.73 mi (8,461.50 km) |
| Security-Widefield to Cuarte de Huerva | 5,110.19 mi (8,224.06 km) |
| Security-Widefield to Cubellas | 5,231.07 mi (8,418.59 km) |
| Security-Widefield to Cuellar | 4,977.63 mi (8,010.72 km) |
