| Glenmont to Cortona | 4,407.85 mi (7,093.75 km) |
| Glenmont to Cosenza | 4,740.77 mi (7,629.53 km) |
| Glenmont to Cossato | 4,166.56 mi (6,705.44 km) |
| Glenmont to Costa Volpino | 4,240.87 mi (6,825.02 km) |
| Glenmont to Creazzo | 4,309.41 mi (6,935.33 km) |
| Glenmont to Crema | 4,238.13 mi (6,820.61 km) |
| Glenmont to Cremona | 4,260.74 mi (6,857.01 km) |
| Glenmont to Crevalcore | 4,322.49 mi (6,956.37 km) |
| Glenmont to Crispiano | 4,734.31 mi (7,619.13 km) |
| Glenmont to Crosia | 4,753.47 mi (7,649.97 km) |
| Glenmont to Crotone | 4,787.64 mi (7,704.97 km) |
| Glenmont to Cuneo | 4,177.10 mi (6,722.40 km) |
| Glenmont to Cuorgne | 4,149.79 mi (6,678.43 km) |
| Glenmont to Cusano Milanino | 4,210.79 mi (6,776.61 km) |
| Glenmont to Cutro | 4,783.64 mi (7,698.52 km) |
