| Williamsport to Carpentras | 3,993.96 mi (6,427.67 km) |
| Williamsport to Carquefou | 3,612.47 mi (5,813.71 km) |
| Williamsport to Carqueiranne | 4,070.92 mi (6,551.51 km) |
| Williamsport to Carrieres-sous-Poissy | 3,716.71 mi (5,981.46 km) |
| Williamsport to Carrieres-sur-Seine | 3,728.13 mi (5,999.84 km) |
| Williamsport to Carros | 4,096.84 mi (6,593.23 km) |
| Williamsport to Carvin | 3,711.73 mi (5,973.46 km) |
| Williamsport to Castanet-Tolosan | 3,854.41 mi (6,203.07 km) |
| Williamsport to Castelginest | 3,845.93 mi (6,189.42 km) |
| Williamsport to Castelnau-le-Lez | 3,957.26 mi (6,368.59 km) |
| Williamsport to Castelnaudary | 3,880.99 mi (6,245.85 km) |
| Williamsport to Castelsarrasin | 3,820.68 mi (6,148.79 km) |
| Williamsport to Castres | 3,885.25 mi (6,252.71 km) |
| Williamsport to Caudebec-les-Elbeuf | 3,665.34 mi (5,898.79 km) |
| Williamsport to Caudry | 3,740.24 mi (6,019.33 km) |
