| Johnstown to Cortona | 4,437.57 mi (7,141.58 km) |
| Johnstown to Cosenza | 4,774.39 mi (7,683.64 km) |
| Johnstown to Cossato | 4,194.66 mi (6,750.65 km) |
| Johnstown to Costa Volpino | 4,266.70 mi (6,866.59 km) |
| Johnstown to Creazzo | 4,334.69 mi (6,976.00 km) |
| Johnstown to Crema | 4,265.37 mi (6,864.44 km) |
| Johnstown to Cremona | 4,288.19 mi (6,901.18 km) |
| Johnstown to Crevalcore | 4,349.86 mi (7,000.42 km) |
| Johnstown to Crispiano | 4,764.34 mi (7,667.46 km) |
| Johnstown to Crosia | 4,786.02 mi (7,702.36 km) |
| Johnstown to Crotone | 4,820.77 mi (7,758.28 km) |
| Johnstown to Cuneo | 4,208.42 mi (6,772.79 km) |
| Johnstown to Cuorgne | 4,178.72 mi (6,725.01 km) |
| Johnstown to Cusano Milanino | 4,238.05 mi (6,820.48 km) |
| Johnstown to Cutro | 4,817.01 mi (7,752.23 km) |
