| Chicago Heights to Cernavoda | 5,294.80 mi (8,521.15 km) |
| Chicago Heights to Chitila | 5,215.41 mi (8,393.40 km) |
| Chicago Heights to Cisnadie | 5,093.39 mi (8,197.02 km) |
| Chicago Heights to Cluj-Napoca | 5,023.71 mi (8,084.89 km) |
| Chicago Heights to Codlea | 5,139.07 mi (8,270.53 km) |
| Chicago Heights to Comanesti | 5,137.92 mi (8,268.69 km) |
| Chicago Heights to Comarnic | 5,167.25 mi (8,315.89 km) |
| Chicago Heights to Constanta | 5,323.87 mi (8,567.94 km) |
| Chicago Heights to Corabia | 5,198.73 mi (8,366.54 km) |
| Chicago Heights to Costesti | 5,168.95 mi (8,318.61 km) |
| Chicago Heights to Covasna | 5,157.16 mi (8,299.65 km) |
| Chicago Heights to Craiova | 5,147.34 mi (8,283.85 km) |
| Chicago Heights to Cristuru Secuiesc | 5,096.37 mi (8,201.82 km) |
| Chicago Heights to Cugir | 5,059.60 mi (8,142.64 km) |
| Chicago Heights to Cumpana | 5,323.92 mi (8,568.02 km) |
