| Allentown to Carpentras | 3,949.25 mi (6,355.71 km) |
| Allentown to Carquefou | 3,569.52 mi (5,744.59 km) |
| Allentown to Carqueiranne | 4,025.38 mi (6,478.22 km) |
| Allentown to Carrieres-sous-Poissy | 3,678.20 mi (5,919.49 km) |
| Allentown to Carrieres-sur-Seine | 3,689.68 mi (5,937.97 km) |
| Allentown to Carros | 4,052.94 mi (6,522.57 km) |
| Allentown to Carvin | 3,676.29 mi (5,916.42 km) |
| Allentown to Castanet-Tolosan | 3,806.92 mi (6,126.65 km) |
| Allentown to Castelginest | 3,798.68 mi (6,113.38 km) |
| Allentown to Castelnau-le-Lez | 3,911.28 mi (6,294.59 km) |
| Allentown to Castelnaudary | 3,833.45 mi (6,169.34 km) |
| Allentown to Castelsarrasin | 3,773.78 mi (6,073.32 km) |
| Allentown to Castres | 3,838.30 mi (6,177.16 km) |
| Allentown to Caudebec-les-Elbeuf | 3,626.93 mi (5,836.98 km) |
| Allentown to Caudry | 3,704.37 mi (5,961.61 km) |
