| Williamsport to Cognac | 3,707.84 mi (5,967.19 km) |
| Williamsport to Cogolin | 4,085.61 mi (6,575.15 km) |
| Williamsport to Colmar | 3,962.03 mi (6,376.27 km) |
| Williamsport to Colombes | 3,726.25 mi (5,996.82 km) |
| Williamsport to Colomiers | 3,844.13 mi (6,186.52 km) |
| Williamsport to Combs-la-Ville | 3,746.19 mi (6,028.91 km) |
| Williamsport to Comines | 3,706.44 mi (5,964.94 km) |
| Williamsport to Compiegne | 3,736.06 mi (6,012.60 km) |
| Williamsport to Concarneau | 3,492.69 mi (5,620.95 km) |
| Williamsport to Conde-sur-l'Escaut | 3,738.45 mi (6,016.46 km) |
| Williamsport to Conflans-Sainte-Honorine | 3,717.75 mi (5,983.14 km) |
| Williamsport to Corbas | 3,935.55 mi (6,333.66 km) |
| Williamsport to Corbeil-Essonnes | 3,744.54 mi (6,026.25 km) |
| Williamsport to Cormeilles-en-Parisis | 3,722.73 mi (5,991.16 km) |
| Williamsport to Cosne sur Loire | 3,797.97 mi (6,112.24 km) |
