| Prospect Heights to Coudekerque-Branche | 4,059.79 mi (6,533.61 km) |
| Prospect Heights to Coueron | 4,028.30 mi (6,482.92 km) |
| Prospect Heights to Coulommiers | 4,163.94 mi (6,701.21 km) |
| Prospect Heights to Courbevoic | 4,128.67 mi (6,644.45 km) |
| Prospect Heights to Courcouronnes | 4,145.28 mi (6,671.19 km) |
| Prospect Heights to Cournon-d'Auvergne | 4,281.22 mi (6,889.95 km) |
| Prospect Heights to Courrieres | 4,100.47 mi (6,599.06 km) |
| Prospect Heights to Coutras | 4,170.32 mi (6,711.49 km) |
| Prospect Heights to Couzeix | 4,196.53 mi (6,753.66 km) |
| Prospect Heights to Cran-Gevrier | 4,391.72 mi (7,067.79 km) |
| Prospect Heights to Craponne | 4,342.67 mi (6,988.85 km) |
| Prospect Heights to Creil | 4,124.87 mi (6,638.33 km) |
| Prospect Heights to Crepy-en-Valois | 4,141.36 mi (6,664.88 km) |
| Prospect Heights to Crest | 4,393.92 mi (7,071.34 km) |
| Prospect Heights to Creteil | 4,140.63 mi (6,663.71 km) |
