| Port Royal to Cortona | 4,853.49 mi (7,810.94 km) |
| Port Royal to Cosenza | 5,177.83 mi (8,332.91 km) |
| Port Royal to Cossato | 4,615.97 mi (7,428.69 km) |
| Port Royal to Costa Volpino | 4,693.97 mi (7,554.21 km) |
| Port Royal to Creazzo | 4,763.24 mi (7,665.69 km) |
| Port Royal to Crema | 4,688.81 mi (7,545.91 km) |
| Port Royal to Cremona | 4,710.97 mi (7,581.58 km) |
| Port Royal to Crevalcore | 4,772.64 mi (7,680.82 km) |
| Port Royal to Crispiano | 5,178.30 mi (8,333.67 km) |
| Port Royal to Crosia | 5,192.58 mi (8,356.64 km) |
| Port Royal to Crotone | 5,225.51 mi (8,409.64 km) |
| Port Royal to Cuneo | 4,620.62 mi (7,436.18 km) |
| Port Royal to Cuorgne | 4,597.75 mi (7,399.36 km) |
| Port Royal to Cusano Milanino | 4,661.52 mi (7,501.99 km) |
| Port Royal to Cutro | 5,221.04 mi (8,402.45 km) |
