| Howard to Cortona | 4,631.14 mi (7,453.10 km) |
| Howard to Cosenza | 4,979.23 mi (8,013.30 km) |
| Howard to Cossato | 4,385.01 mi (7,057.00 km) |
| Howard to Costa Volpino | 4,447.14 mi (7,156.98 km) |
| Howard to Creazzo | 4,512.01 mi (7,261.38 km) |
| Howard to Crema | 4,451.38 mi (7,163.80 km) |
| Howard to Cremona | 4,474.74 mi (7,201.41 km) |
| Howard to Crevalcore | 4,535.29 mi (7,298.84 km) |
| Howard to Crispiano | 4,955.05 mi (7,974.39 km) |
| Howard to Crosia | 4,986.50 mi (8,025.00 km) |
| Howard to Crotone | 5,023.12 mi (8,083.93 km) |
| Howard to Cuneo | 4,411.24 mi (7,099.21 km) |
| Howard to Cuorgne | 4,372.63 mi (7,037.06 km) |
| Howard to Cusano Milanino | 4,424.52 mi (7,120.57 km) |
| Howard to Cutro | 5,020.35 mi (8,079.48 km) |
