| Seclin to Cabestany | 543.62 mi (874.87 km) |
| Seclin to Cabries | 503.33 mi (810.02 km) |
| Seclin to Cachan | 125.30 mi (201.65 km) |
| Seclin to Caen | 178.47 mi (287.22 km) |
| Seclin to Cagnes-sur-Mer | 513.37 mi (826.18 km) |
| Seclin to Cahors | 427.97 mi (688.75 km) |
| Seclin to Calais | 58.25 mi (93.74 km) |
| Seclin to Caluire-et-Cuire | 338.89 mi (545.38 km) |
| Seclin to Cambrai | 27.24 mi (43.83 km) |
| Seclin to Canet-en-Roussillon | 541.88 mi (872.07 km) |
| Seclin to Cannes | 518.35 mi (834.20 km) |
| Seclin to Canteleu | 116.54 mi (187.56 km) |
| Seclin to Capbreton | 521.05 mi (838.56 km) |
| Seclin to Carcassonne | 508.04 mi (817.60 km) |
| Seclin to Carmaux | 450.89 mi (725.63 km) |
