| Prospect Heights to Cognac | 4,138.53 mi (6,660.33 km) |
| Prospect Heights to Cogolin | 4,513.70 mi (7,264.09 km) |
| Prospect Heights to Colmar | 4,356.08 mi (7,010.44 km) |
| Prospect Heights to Colombes | 4,127.72 mi (6,642.92 km) |
| Prospect Heights to Colomiers | 4,284.12 mi (6,894.62 km) |
| Prospect Heights to Combs-la-Ville | 4,148.74 mi (6,676.76 km) |
| Prospect Heights to Comines | 4,092.18 mi (6,585.72 km) |
| Prospect Heights to Compiegne | 4,132.46 mi (6,650.55 km) |
| Prospect Heights to Concarneau | 3,916.59 mi (6,303.14 km) |
| Prospect Heights to Conde-sur-l'Escaut | 4,125.14 mi (6,638.77 km) |
| Prospect Heights to Conflans-Sainte-Honorine | 4,119.05 mi (6,628.97 km) |
| Prospect Heights to Corbas | 4,352.80 mi (7,005.15 km) |
| Prospect Heights to Corbeil-Essonnes | 4,147.70 mi (6,675.07 km) |
| Prospect Heights to Cormeilles-en-Parisis | 4,123.96 mi (6,636.87 km) |
| Prospect Heights to Cosne sur Loire | 4,208.60 mi (6,773.09 km) |
