| Allentown to Cavaillon | 3,955.62 mi (6,365.96 km) |
| Allentown to Cebazat | 3,809.90 mi (6,131.44 km) |
| Allentown to Cenon | 3,676.85 mi (5,917.31 km) |
| Allentown to Cergy | 3,676.92 mi (5,917.43 km) |
| Allentown to Cernay | 3,925.56 mi (6,317.58 km) |
| Allentown to Cesson | 3,711.99 mi (5,973.87 km) |
| Allentown to Cesson-Sevigne | 3,544.17 mi (5,703.80 km) |
| Allentown to Cestas | 3,673.24 mi (5,911.51 km) |
| Allentown to Chalette-sur-Loing | 3,732.69 mi (6,007.18 km) |
| Allentown to Challans | 3,564.09 mi (5,735.84 km) |
| Allentown to Chalon-sur-Saone | 3,857.90 mi (6,208.70 km) |
| Allentown to Chalons-en-Champagne | 3,775.16 mi (6,075.53 km) |
| Allentown to Chamalieres | 3,810.13 mi (6,131.82 km) |
| Allentown to Chambery | 3,939.98 mi (6,340.79 km) |
| Allentown to Chambly | 3,681.25 mi (5,924.41 km) |
