| Allentown to Campo de Criptana | 3,716.02 mi (5,980.36 km) |
| Allentown to Campos del Puerto | 4,005.73 mi (6,446.60 km) |
| Allentown to Canals | 3,850.68 mi (6,197.07 km) |
| Allentown to Candelaria | 3,405.99 mi (5,481.42 km) |
| Allentown to Canet de Mar | 3,915.51 mi (6,301.41 km) |
| Allentown to Cangas | 3,365.01 mi (5,415.46 km) |
| Allentown to Cangas de Narcea | 3,447.15 mi (5,547.66 km) |
| Allentown to Canovellas | 3,900.82 mi (6,277.77 km) |
| Allentown to Canteras | 3,872.16 mi (6,231.64 km) |
| Allentown to Cantillana | 3,640.38 mi (5,858.63 km) |
| Allentown to Capdepera | 4,016.15 mi (6,463.37 km) |
| Allentown to Carballo | 3,345.57 mi (5,384.18 km) |
| Allentown to Carcagente | 3,852.02 mi (6,199.23 km) |
| Allentown to Cardedeu | 3,903.68 mi (6,282.37 km) |
| Allentown to Carlet | 3,845.28 mi (6,188.37 km) |
