| Herndon to Corato | 4,695.89 mi (7,557.30 km) |
| Herndon to Corbetta | 4,220.75 mi (6,792.64 km) |
| Herndon to Corciano | 4,444.48 mi (7,152.70 km) |
| Herndon to Cordenons | 4,364.13 mi (7,023.39 km) |
| Herndon to Cori | 4,524.80 mi (7,281.96 km) |
| Herndon to Coriano | 4,429.13 mi (7,127.99 km) |
| Herndon to Corigliano Calabro | 4,760.08 mi (7,660.60 km) |
| Herndon to Corleone | 4,682.78 mi (7,536.21 km) |
| Herndon to Cormano | 4,228.81 mi (6,805.61 km) |
| Herndon to Cornaredo | 4,224.69 mi (6,798.98 km) |
| Herndon to Cornate d'Adda | 4,238.43 mi (6,821.09 km) |
| Herndon to Cornedo Vicentino | 4,319.63 mi (6,951.77 km) |
| Herndon to Correggio | 4,323.64 mi (6,958.23 km) |
| Herndon to Corridonia | 4,493.80 mi (7,232.08 km) |
| Herndon to Corsico | 4,230.41 mi (6,808.19 km) |
