| Tonawanda to Coudekerque-Branche | 3,670.46 mi (5,907.04 km) |
| Tonawanda to Coueron | 3,616.10 mi (5,819.55 km) |
| Tonawanda to Coulommiers | 3,765.70 mi (6,060.30 km) |
| Tonawanda to Courbevoic | 3,729.47 mi (6,002.00 km) |
| Tonawanda to Courcouronnes | 3,745.18 mi (6,027.29 km) |
| Tonawanda to Cournon-d'Auvergne | 3,870.70 mi (6,229.28 km) |
| Tonawanda to Courrieres | 3,709.35 mi (5,969.63 km) |
| Tonawanda to Coutras | 3,752.11 mi (6,038.44 km) |
| Tonawanda to Couzeix | 3,783.47 mi (6,088.90 km) |
| Tonawanda to Cran-Gevrier | 3,986.59 mi (6,415.79 km) |
| Tonawanda to Craponne | 3,934.62 mi (6,332.17 km) |
| Tonawanda to Creil | 3,727.61 mi (5,999.01 km) |
| Tonawanda to Crepy-en-Valois | 3,744.64 mi (6,026.41 km) |
| Tonawanda to Crest | 3,982.58 mi (6,409.35 km) |
| Tonawanda to Creteil | 3,741.31 mi (6,021.05 km) |
