| Seclin to Wasquehal | 9.48 mi (15.25 km) |
| Seclin to Wattignies | 2.61 mi (4.19 km) |
| Seclin to Wattrelos | 13.32 mi (21.44 km) |
| Seclin to Wingles | 8.51 mi (13.70 km) |
| Seclin to Wittelsheim | 268.33 mi (431.84 km) |
| Seclin to Wittenheim | 271.42 mi (436.80 km) |
| Seclin to Woippy | 169.28 mi (272.44 km) |
| Seclin to Yerres | 128.82 mi (207.32 km) |
| Seclin to Yutz | 162.70 mi (261.84 km) |
| Seclin to Yvetot | 119.69 mi (192.62 km) |
| Seclin to Yzeure | 275.56 mi (443.48 km) |
| Seclin to Cayenne | 4,475.17 mi (7,202.08 km) |
| Seclin to Iracoubo | 4,479.95 mi (7,209.78 km) |
| Seclin to Kourou | 4,475.13 mi (7,202.02 km) |
| Seclin to Roura | 4,486.62 mi (7,220.51 km) |
