| Grande-Synthe to Cabestany | 576.56 mi (927.89 km) |
| Grande-Synthe to Cabries | 542.65 mi (873.32 km) |
| Grande-Synthe to Cachan | 153.53 mi (247.08 km) |
| Grande-Synthe to Caen | 173.44 mi (279.13 km) |
| Grande-Synthe to Cagnes-sur-Mer | 555.89 mi (894.61 km) |
| Grande-Synthe to Cahors | 455.45 mi (732.98 km) |
| Grande-Synthe to Calais | 19.94 mi (32.10 km) |
| Grande-Synthe to Caluire-et-Cuire | 378.93 mi (609.82 km) |
| Grande-Synthe to Cambrai | 70.85 mi (114.02 km) |
| Grande-Synthe to Canet-en-Roussillon | 575.00 mi (925.38 km) |
| Grande-Synthe to Cannes | 560.60 mi (902.20 km) |
| Grande-Synthe to Canteleu | 121.62 mi (195.74 km) |
| Grande-Synthe to Capbreton | 538.37 mi (866.42 km) |
| Grande-Synthe to Carcassonne | 539.20 mi (867.76 km) |
| Grande-Synthe to Carmaux | 481.26 mi (774.52 km) |
