| Martinsburg to Cortona | 4,432.46 mi (7,133.36 km) |
| Martinsburg to Cosenza | 4,766.97 mi (7,671.70 km) |
| Martinsburg to Cossato | 4,190.49 mi (6,743.95 km) |
| Martinsburg to Costa Volpino | 4,263.91 mi (6,862.10 km) |
| Martinsburg to Creazzo | 4,332.24 mi (6,972.07 km) |
| Martinsburg to Crema | 4,261.73 mi (6,858.59 km) |
| Martinsburg to Cremona | 4,284.43 mi (6,895.13 km) |
| Martinsburg to Crevalcore | 4,346.15 mi (6,994.46 km) |
| Martinsburg to Crispiano | 4,759.09 mi (7,659.02 km) |
| Martinsburg to Crosia | 4,779.25 mi (7,691.46 km) |
| Martinsburg to Crotone | 4,813.66 mi (7,746.84 km) |
| Martinsburg to Cuneo | 4,202.31 mi (6,762.97 km) |
| Martinsburg to Cuorgne | 4,174.05 mi (6,717.48 km) |
| Martinsburg to Cusano Milanino | 4,234.39 mi (6,814.60 km) |
| Martinsburg to Cutro | 4,809.75 mi (7,740.54 km) |
