| Chicago Heights to Cocentaina | 4,399.88 mi (7,080.93 km) |
| Chicago Heights to Coin | 4,280.65 mi (6,889.03 km) |
| Chicago Heights to Colindres | 4,097.63 mi (6,594.50 km) |
| Chicago Heights to Collado-Villalba | 4,169.87 mi (6,710.75 km) |
| Chicago Heights to Colmenar Viejo | 4,179.83 mi (6,726.79 km) |
| Chicago Heights to Colmenarejo | 4,172.07 mi (6,714.29 km) |
| Chicago Heights to Conil de la Frontera | 4,233.02 mi (6,812.38 km) |
| Chicago Heights to Consuegra | 4,230.24 mi (6,807.91 km) |
| Chicago Heights to Corbera de Llobregat | 4,402.94 mi (7,085.85 km) |
| Chicago Heights to Cordoba | 4,234.22 mi (6,814.32 km) |
| Chicago Heights to Coria del Rio | 4,197.23 mi (6,754.78 km) |
| Chicago Heights to Crevillente | 4,402.19 mi (7,084.63 km) |
| Chicago Heights to Cuarte de Huerva | 4,272.70 mi (6,876.24 km) |
| Chicago Heights to Cubellas | 4,399.63 mi (7,080.52 km) |
| Chicago Heights to Cuellar | 4,129.01 mi (6,645.00 km) |
