| Romeoville to Cabestany | 4,413.18 mi (7,102.32 km) |
| Romeoville to Cabries | 4,485.59 mi (7,218.86 km) |
| Romeoville to Cachan | 4,163.45 mi (6,700.43 km) |
| Romeoville to Caen | 4,043.78 mi (6,507.84 km) |
| Romeoville to Cagnes-sur-Mer | 4,549.38 mi (7,321.52 km) |
| Romeoville to Cahors | 4,283.70 mi (6,893.96 km) |
| Romeoville to Calais | 4,070.80 mi (6,551.33 km) |
| Romeoville to Caluire-et-Cuire | 4,373.05 mi (7,037.75 km) |
| Romeoville to Cambrai | 4,149.83 mi (6,678.50 km) |
| Romeoville to Canet-en-Roussillon | 4,414.94 mi (7,105.16 km) |
| Romeoville to Cannes | 4,548.34 mi (7,319.85 km) |
| Romeoville to Canteleu | 4,089.93 mi (6,582.10 km) |
| Romeoville to Capbreton | 4,191.45 mi (6,745.48 km) |
| Romeoville to Carcassonne | 4,368.01 mi (7,029.63 km) |
| Romeoville to Carmaux | 4,328.44 mi (6,965.94 km) |
