| Prospect Heights to Cadiz | 4,209.62 mi (6,774.73 km) |
| Prospect Heights to Calafell | 4,385.87 mi (7,058.37 km) |
| Prospect Heights to Calahorra | 4,191.61 mi (6,745.74 km) |
| Prospect Heights to Calasparra | 4,356.11 mi (7,010.48 km) |
| Prospect Heights to Calatayud | 4,241.11 mi (6,825.41 km) |
| Prospect Heights to Caldas de Montbuy | 4,394.83 mi (7,072.80 km) |
| Prospect Heights to Caldas de Reyes | 3,887.52 mi (6,256.35 km) |
| Prospect Heights to Calella | 4,416.67 mi (7,107.94 km) |
| Prospect Heights to Callosa de Segura | 4,397.21 mi (7,076.63 km) |
| Prospect Heights to Calpe | 4,418.21 mi (7,110.42 km) |
| Prospect Heights to Calvia | 4,490.48 mi (7,226.73 km) |
| Prospect Heights to Camas | 4,189.52 mi (6,742.38 km) |
| Prospect Heights to Cambados | 3,883.72 mi (6,250.24 km) |
| Prospect Heights to Cambre | 3,878.55 mi (6,241.92 km) |
| Prospect Heights to Cambrils | 4,368.85 mi (7,030.99 km) |
