| Grande-Synthe to Corbetta | 489.01 mi (786.98 km) |
| Grande-Synthe to Corciano | 717.77 mi (1,155.14 km) |
| Grande-Synthe to Cordenons | 588.52 mi (947.14 km) |
| Grande-Synthe to Cori | 820.05 mi (1,319.74 km) |
| Grande-Synthe to Coriano | 683.03 mi (1,099.24 km) |
| Grande-Synthe to Corigliano Calabro | 1,044.67 mi (1,681.24 km) |
| Grande-Synthe to Corleone | 1,058.54 mi (1,703.55 km) |
| Grande-Synthe to Cormano | 491.62 mi (791.19 km) |
| Grande-Synthe to Cornaredo | 490.50 mi (789.38 km) |
| Grande-Synthe to Cornate d'Adda | 495.16 mi (796.88 km) |
| Grande-Synthe to Cornedo Vicentino | 557.73 mi (897.58 km) |
| Grande-Synthe to Correggio | 582.71 mi (937.79 km) |
| Grande-Synthe to Corridonia | 750.48 mi (1,207.78 km) |
| Grande-Synthe to Corsico | 496.61 mi (799.21 km) |
| Grande-Synthe to Cortona | 700.96 mi (1,128.09 km) |
