| Bostonia to Cocentaina | 6,033.58 mi (9,710.11 km) |
| Bostonia to Coin | 5,945.13 mi (9,567.77 km) |
| Bostonia to Colindres | 5,706.77 mi (9,184.16 km) |
| Bostonia to Collado-Villalba | 5,804.46 mi (9,341.37 km) |
| Bostonia to Colmenar Viejo | 5,813.23 mi (9,355.49 km) |
| Bostonia to Colmenarejo | 5,807.25 mi (9,345.87 km) |
| Bostonia to Conil de la Frontera | 5,904.22 mi (9,501.92 km) |
| Bostonia to Consuegra | 5,871.97 mi (9,450.03 km) |
| Bostonia to Corbera de Llobregat | 6,003.86 mi (9,662.29 km) |
| Bostonia to Cordoba | 5,891.25 mi (9,481.06 km) |
| Bostonia to Coria del Rio | 5,862.43 mi (9,434.67 km) |
| Bostonia to Crevillente | 6,041.09 mi (9,722.20 km) |
| Bostonia to Cuarte de Huerva | 5,886.06 mi (9,472.71 km) |
| Bostonia to Cubellas | 6,003.64 mi (9,661.93 km) |
| Bostonia to Cuellar | 5,758.83 mi (9,267.94 km) |
