| Allentown to Cervignano del Friuli | 4,246.91 mi (6,834.73 km) |
| Allentown to Cesa | 4,460.78 mi (7,178.93 km) |
| Allentown to Cesano Maderno | 4,076.95 mi (6,561.22 km) |
| Allentown to Cesena | 4,259.67 mi (6,855.27 km) |
| Allentown to Cesenatico | 4,263.93 mi (6,862.14 km) |
| Allentown to Cetraro | 4,592.18 mi (7,390.40 km) |
| Allentown to Cherasco | 4,053.83 mi (6,524.01 km) |
| Allentown to Chiampo | 4,170.29 mi (6,711.43 km) |
| Allentown to Chiaravalle | 4,325.32 mi (6,960.94 km) |
| Allentown to Chiari | 4,111.99 mi (6,617.62 km) |
| Allentown to Chiavari | 4,128.36 mi (6,643.96 km) |
| Allentown to Chieri | 4,040.15 mi (6,501.99 km) |
| Allentown to Chieti | 4,406.56 mi (7,091.67 km) |
| Allentown to Chioggia | 4,223.57 mi (6,797.18 km) |
| Allentown to Chiusi | 4,286.49 mi (6,898.45 km) |
