| Glen Ellyn to Cortona | 4,748.28 mi (7,641.62 km) |
| Glen Ellyn to Cosenza | 5,093.89 mi (8,197.82 km) |
| Glen Ellyn to Cossato | 4,502.52 mi (7,246.11 km) |
| Glen Ellyn to Costa Volpino | 4,567.49 mi (7,350.66 km) |
| Glen Ellyn to Creazzo | 4,633.34 mi (7,456.64 km) |
| Glen Ellyn to Crema | 4,570.22 mi (7,355.06 km) |
| Glen Ellyn to Cremona | 4,593.49 mi (7,392.51 km) |
| Glen Ellyn to Crevalcore | 4,654.47 mi (7,490.65 km) |
| Glen Ellyn to Crispiano | 5,073.63 mi (8,165.22 km) |
| Glen Ellyn to Crosia | 5,102.41 mi (8,211.54 km) |
| Glen Ellyn to Crotone | 5,138.57 mi (8,269.73 km) |
| Glen Ellyn to Cuneo | 4,525.32 mi (7,282.80 km) |
| Glen Ellyn to Cuorgne | 4,489.12 mi (7,224.55 km) |
| Glen Ellyn to Cusano Milanino | 4,543.18 mi (7,311.54 km) |
| Glen Ellyn to Cutro | 5,135.52 mi (8,264.82 km) |
