| Sidney to Coudekerque-Branche | 3,999.94 mi (6,437.28 km) |
| Sidney to Coueron | 3,947.40 mi (6,352.73 km) |
| Sidney to Coulommiers | 4,096.25 mi (6,592.27 km) |
| Sidney to Courbevoic | 4,060.10 mi (6,534.10 km) |
| Sidney to Courcouronnes | 4,075.89 mi (6,559.52 km) |
| Sidney to Cournon-d'Auvergne | 4,201.98 mi (6,762.44 km) |
| Sidney to Courrieres | 4,039.08 mi (6,500.28 km) |
| Sidney to Coutras | 4,083.33 mi (6,571.49 km) |
| Sidney to Couzeix | 4,114.78 mi (6,622.10 km) |
| Sidney to Cran-Gevrier | 4,317.68 mi (6,948.64 km) |
| Sidney to Craponne | 4,265.85 mi (6,865.22 km) |
| Sidney to Creil | 4,058.05 mi (6,530.81 km) |
| Sidney to Crepy-en-Valois | 4,075.03 mi (6,558.13 km) |
| Sidney to Crest | 4,313.88 mi (6,942.53 km) |
| Sidney to Creteil | 4,071.95 mi (6,553.17 km) |
