| Williamsport to Coudekerque-Branche | 3,674.61 mi (5,913.71 km) |
| Williamsport to Coueron | 3,604.73 mi (5,801.26 km) |
| Williamsport to Coulommiers | 3,763.77 mi (6,057.21 km) |
| Williamsport to Courbevoic | 3,727.01 mi (5,998.04 km) |
| Williamsport to Courcouronnes | 3,742.06 mi (6,022.27 km) |
| Williamsport to Cournon-d'Auvergne | 3,859.89 mi (6,211.89 km) |
| Williamsport to Courrieres | 3,712.25 mi (5,974.29 km) |
| Williamsport to Coutras | 3,735.76 mi (6,012.12 km) |
| Williamsport to Couzeix | 3,771.00 mi (6,068.84 km) |
| Williamsport to Cran-Gevrier | 3,979.34 mi (6,404.13 km) |
| Williamsport to Craponne | 3,925.45 mi (6,317.40 km) |
| Williamsport to Creil | 3,726.45 mi (5,997.14 km) |
| Williamsport to Crepy-en-Valois | 3,743.78 mi (6,025.03 km) |
| Williamsport to Crest | 3,970.88 mi (6,390.52 km) |
| Williamsport to Creteil | 3,738.72 mi (6,016.89 km) |
