| McKeesport to Cocentaina | 4,079.16 mi (6,564.77 km) |
| McKeesport to Coin | 3,942.11 mi (6,344.22 km) |
| McKeesport to Colindres | 3,793.13 mi (6,104.46 km) |
| McKeesport to Collado-Villalba | 3,850.52 mi (6,196.81 km) |
| McKeesport to Colmenar Viejo | 3,861.09 mi (6,213.82 km) |
| McKeesport to Colmenarejo | 3,852.36 mi (6,199.77 km) |
| McKeesport to Conil de la Frontera | 3,890.21 mi (6,260.70 km) |
| McKeesport to Consuegra | 3,906.22 mi (6,286.46 km) |
| McKeesport to Corbera de Llobregat | 4,099.70 mi (6,597.82 km) |
| McKeesport to Cordoba | 3,900.81 mi (6,277.75 km) |
| McKeesport to Coria del Rio | 3,858.74 mi (6,210.04 km) |
| McKeesport to Crevillente | 4,078.48 mi (6,563.69 km) |
| McKeesport to Cuarte de Huerva | 3,964.21 mi (6,379.78 km) |
| McKeesport to Cubellas | 4,094.83 mi (6,589.99 km) |
| McKeesport to Cuellar | 3,812.76 mi (6,136.05 km) |
