| Seclin to Carpentras | 458.41 mi (737.74 km) |
| Seclin to Carquefou | 304.22 mi (489.60 km) |
| Seclin to Carqueiranne | 534.58 mi (860.33 km) |
| Seclin to Carrieres-sous-Poissy | 119.10 mi (191.67 km) |
| Seclin to Carrieres-sur-Seine | 117.87 mi (189.70 km) |
| Seclin to Carros | 507.18 mi (816.23 km) |
| Seclin to Carvin | 4.94 mi (7.94 km) |
| Seclin to Castanet-Tolosan | 491.20 mi (790.52 km) |
| Seclin to Castelginest | 479.49 mi (771.67 km) |
| Seclin to Castelnau-le-Lez | 479.28 mi (771.33 km) |
| Seclin to Castelnaudary | 502.11 mi (808.07 km) |
| Seclin to Castelsarrasin | 458.57 mi (738.00 km) |
| Seclin to Castres | 481.47 mi (774.85 km) |
| Seclin to Caudebec-les-Elbeuf | 125.10 mi (201.34 km) |
| Seclin to Caudry | 33.76 mi (54.33 km) |
