| Allen to Cortona | 5,504.71 mi (8,858.97 km) |
| Allen to Cosenza | 5,847.72 mi (9,410.99 km) |
| Allen to Cossato | 5,259.54 mi (8,464.41 km) |
| Allen to Costa Volpino | 5,326.59 mi (8,572.31 km) |
| Allen to Creazzo | 5,393.06 mi (8,679.29 km) |
| Allen to Crema | 5,328.20 mi (8,574.92 km) |
| Allen to Cremona | 5,351.37 mi (8,612.20 km) |
| Allen to Crevalcore | 5,412.62 mi (8,710.77 km) |
| Allen to Crispiano | 5,830.86 mi (9,383.87 km) |
| Allen to Crosia | 5,857.36 mi (9,426.50 km) |
| Allen to Crotone | 5,893.06 mi (9,483.97 km) |
| Allen to Cuneo | 5,279.41 mi (8,496.38 km) |
| Allen to Cuorgne | 5,245.34 mi (8,441.56 km) |
| Allen to Cusano Milanino | 5,301.05 mi (8,531.21 km) |
| Allen to Cutro | 5,889.75 mi (9,478.64 km) |
