| Prospect Heights to Cocentaina | 4,392.71 mi (7,069.38 km) |
| Prospect Heights to Coin | 4,276.54 mi (6,882.43 km) |
| Prospect Heights to Colindres | 4,088.12 mi (6,579.19 km) |
| Prospect Heights to Collado-Villalba | 4,162.60 mi (6,699.05 km) |
| Prospect Heights to Colmenar Viejo | 4,172.46 mi (6,714.93 km) |
| Prospect Heights to Colmenarejo | 4,164.86 mi (6,702.69 km) |
| Prospect Heights to Conil de la Frontera | 4,229.71 mi (6,807.05 km) |
| Prospect Heights to Consuegra | 4,223.69 mi (6,797.37 km) |
| Prospect Heights to Corbera de Llobregat | 4,393.07 mi (7,069.97 km) |
| Prospect Heights to Cordoba | 4,229.24 mi (6,806.31 km) |
| Prospect Heights to Coria del Rio | 4,193.16 mi (6,748.24 km) |
| Prospect Heights to Crevillente | 4,395.49 mi (7,073.86 km) |
| Prospect Heights to Cuarte de Huerva | 4,263.68 mi (6,861.74 km) |
| Prospect Heights to Cubellas | 4,389.99 mi (7,065.01 km) |
| Prospect Heights to Cuellar | 4,121.28 mi (6,632.56 km) |
