| Boise to Coudekerque-Branche | 4,937.53 mi (7,946.18 km) |
| Boise to Coueron | 5,003.54 mi (8,052.43 km) |
| Boise to Coulommiers | 5,072.06 mi (8,162.69 km) |
| Boise to Courbevoic | 5,042.80 mi (8,115.60 km) |
| Boise to Courcouronnes | 5,062.28 mi (8,146.95 km) |
| Boise to Cournon-d'Auvergne | 5,236.06 mi (8,426.63 km) |
| Boise to Courrieres | 4,982.92 mi (8,019.24 km) |
| Boise to Coutras | 5,165.45 mi (8,312.98 km) |
| Boise to Couzeix | 5,167.00 mi (8,315.49 km) |
| Boise to Cran-Gevrier | 5,316.99 mi (8,556.86 km) |
| Boise to Craponne | 5,283.34 mi (8,502.72 km) |
| Boise to Creil | 5,031.13 mi (8,096.82 km) |
| Boise to Crepy-en-Valois | 5,044.46 mi (8,118.27 km) |
| Boise to Crest | 5,346.79 mi (8,604.83 km) |
| Boise to Creteil | 5,054.64 mi (8,134.67 km) |
