| Seclin to Creutzwald | 187.75 mi (302.15 km) |
| Seclin to Croissy-sur-Seine | 122.03 mi (196.40 km) |
| Seclin to Croix | 10.43 mi (16.78 km) |
| Seclin to Crosne | 129.22 mi (207.95 km) |
| Seclin to Cuers | 525.02 mi (844.94 km) |
| Seclin to Cugnaux | 490.80 mi (789.87 km) |
| Seclin to Cusset | 305.60 mi (491.81 km) |
| Seclin to Dammarie-le-Lys | 141.38 mi (227.53 km) |
| Seclin to Dammartin-en-Goele | 104.39 mi (168.00 km) |
| Seclin to Dardilly | 337.15 mi (542.59 km) |
| Seclin to Darnetal | 113.02 mi (181.88 km) |
| Seclin to Dax | 509.71 mi (820.30 km) |
| Seclin to Decines-Charpieu | 341.93 mi (550.28 km) |
| Seclin to Denain | 22.12 mi (35.60 km) |
| Seclin to Deuil-la-Barre | 113.02 mi (181.88 km) |
