| Quincy to Cocentaina | 3,607.30 mi (5,805.40 km) |
| Quincy to Coin | 3,466.66 mi (5,579.05 km) |
| Quincy to Colindres | 3,326.93 mi (5,354.17 km) |
| Quincy to Collado-Villalba | 3,379.29 mi (5,438.44 km) |
| Quincy to Colmenar Viejo | 3,390.02 mi (5,455.71 km) |
| Quincy to Colmenarejo | 3,381.02 mi (5,441.23 km) |
| Quincy to Conil de la Frontera | 3,414.26 mi (5,494.72 km) |
| Quincy to Consuegra | 3,433.67 mi (5,525.96 km) |
| Quincy to Corbera de Llobregat | 3,633.42 mi (5,847.42 km) |
| Quincy to Cordoba | 3,426.21 mi (5,513.95 km) |
| Quincy to Coria del Rio | 3,383.32 mi (5,444.93 km) |
| Quincy to Crevillente | 3,605.86 mi (5,803.07 km) |
| Quincy to Cuarte de Huerva | 3,496.27 mi (5,626.71 km) |
| Quincy to Cubellas | 3,627.99 mi (5,838.69 km) |
| Quincy to Cuellar | 3,342.50 mi (5,379.23 km) |
