| Humacao to Cortona | 4,761.94 mi (7,663.61 km) |
| Humacao to Cosenza | 5,017.31 mi (8,074.59 km) |
| Humacao to Cossato | 4,563.49 mi (7,344.23 km) |
| Humacao to Costa Volpino | 4,655.84 mi (7,492.84 km) |
| Humacao to Creazzo | 4,723.84 mi (7,602.29 km) |
| Humacao to Crema | 4,637.51 mi (7,463.36 km) |
| Humacao to Cremona | 4,655.43 mi (7,492.19 km) |
| Humacao to Crevalcore | 4,711.89 mi (7,583.05 km) |
| Humacao to Crispiano | 5,053.64 mi (8,133.04 km) |
| Humacao to Crosia | 5,041.41 mi (8,113.37 km) |
| Humacao to Crotone | 5,065.60 mi (8,152.29 km) |
| Humacao to Cuneo | 4,536.20 mi (7,300.31 km) |
| Humacao to Cuorgne | 4,538.84 mi (7,304.56 km) |
| Humacao to Cusano Milanino | 4,612.68 mi (7,423.39 km) |
| Humacao to Cutro | 5,059.12 mi (8,141.87 km) |
