| Harrison to Cortona | 4,186.34 mi (6,737.27 km) |
| Harrison to Cosenza | 4,519.73 mi (7,273.80 km) |
| Harrison to Cossato | 3,944.93 mi (6,348.74 km) |
| Harrison to Costa Volpino | 4,019.13 mi (6,468.16 km) |
| Harrison to Creazzo | 4,087.66 mi (6,578.45 km) |
| Harrison to Crema | 4,016.45 mi (6,463.85 km) |
| Harrison to Cremona | 4,039.07 mi (6,500.26 km) |
| Harrison to Crevalcore | 4,100.81 mi (6,599.62 km) |
| Harrison to Crispiano | 4,512.85 mi (7,262.72 km) |
| Harrison to Crosia | 4,532.28 mi (7,294.01 km) |
| Harrison to Crotone | 4,566.54 mi (7,349.13 km) |
| Harrison to Cuneo | 3,955.74 mi (6,366.14 km) |
| Harrison to Cuorgne | 3,928.20 mi (6,321.83 km) |
| Harrison to Cusano Milanino | 3,989.11 mi (6,419.84 km) |
| Harrison to Cutro | 4,562.57 mi (7,342.74 km) |
