| Hartford to Cocentaina | 3,699.08 mi (5,953.10 km) |
| Hartford to Coin | 3,558.24 mi (5,726.44 km) |
| Hartford to Colindres | 3,418.40 mi (5,501.38 km) |
| Hartford to Collado-Villalba | 3,471.05 mi (5,586.12 km) |
| Hartford to Colmenar Viejo | 3,481.78 mi (5,603.39 km) |
| Hartford to Colmenarejo | 3,472.79 mi (5,588.91 km) |
| Hartford to Conil de la Frontera | 3,505.71 mi (5,641.90 km) |
| Hartford to Consuegra | 3,525.46 mi (5,673.68 km) |
| Hartford to Corbera de Llobregat | 3,724.90 mi (5,994.65 km) |
| Hartford to Cordoba | 3,517.92 mi (5,661.54 km) |
| Hartford to Coria del Rio | 3,474.92 mi (5,592.34 km) |
| Hartford to Crevillente | 3,697.64 mi (5,950.78 km) |
| Hartford to Cuarte de Huerva | 3,587.88 mi (5,774.13 km) |
| Hartford to Cubellas | 3,719.52 mi (5,985.99 km) |
| Hartford to Cuellar | 3,434.23 mi (5,526.86 km) |
