| Allentown to Celano | 4,389.82 mi (7,064.73 km) |
| Allentown to Cento | 4,198.06 mi (6,756.12 km) |
| Allentown to Cepagatti | 4,401.62 mi (7,083.72 km) |
| Allentown to Ceprano | 4,407.73 mi (7,093.56 km) |
| Allentown to Cercola | 4,469.64 mi (7,193.19 km) |
| Allentown to Cerea | 4,179.32 mi (6,725.97 km) |
| Allentown to Cerese | 4,164.57 mi (6,702.22 km) |
| Allentown to Cerignola | 4,522.13 mi (7,277.67 km) |
| Allentown to Cermenate | 4,072.05 mi (6,553.32 km) |
| Allentown to Cernusco sul Naviglio | 4,088.68 mi (6,580.09 km) |
| Allentown to Cerreto Guidi | 4,214.08 mi (6,781.91 km) |
| Allentown to Cerro Maggiore | 4,069.61 mi (6,549.41 km) |
| Allentown to Certaldo | 4,228.48 mi (6,805.09 km) |
| Allentown to Cerveteri | 4,329.30 mi (6,967.34 km) |
| Allentown to Cervia | 4,260.23 mi (6,856.18 km) |
