| Prospect Heights to Carmona | 4,205.59 mi (6,768.24 km) |
| Prospect Heights to Cartagena | 4,412.95 mi (7,101.96 km) |
| Prospect Heights to Cartama | 4,280.37 mi (6,888.58 km) |
| Prospect Heights to Cartaya | 4,142.11 mi (6,666.08 km) |
| Prospect Heights to Caspe | 4,315.25 mi (6,944.72 km) |
| Prospect Heights to Cassa de la Selva | 4,415.00 mi (7,105.26 km) |
| Prospect Heights to Castalla | 4,388.18 mi (7,062.09 km) |
| Prospect Heights to Castellbisbal | 4,392.94 mi (7,069.75 km) |
| Prospect Heights to Castelldefels | 4,400.32 mi (7,081.63 km) |
| Prospect Heights to Castello de Ampurias | 4,409.15 mi (7,095.83 km) |
| Prospect Heights to Castellon de la Plana | 4,362.97 mi (7,021.52 km) |
| Prospect Heights to Castilleja de la Cuesta | 4,189.44 mi (6,742.25 km) |
| Prospect Heights to Catarroja | 4,368.90 mi (7,031.06 km) |
| Prospect Heights to Catral | 4,399.13 mi (7,079.72 km) |
| Prospect Heights to Caudete | 4,369.82 mi (7,032.55 km) |
