| Seclin to Les Sorinieres | 313.17 mi (504.00 km) |
| Seclin to Lescar | 524.73 mi (844.48 km) |
| Seclin to Lesquin | 4.59 mi (7.38 km) |
| Seclin to Levallois-Perret | 118.94 mi (191.42 km) |
| Seclin to Lezignan-Corbieres | 507.84 mi (817.29 km) |
| Seclin to Libourne | 417.40 mi (671.73 km) |
| Seclin to Lieusaint | 134.13 mi (215.86 km) |
| Seclin to Lievin | 14.03 mi (22.57 km) |
| Seclin to Lille | 5.64 mi (9.07 km) |
| Seclin to Lillebonne | 131.41 mi (211.48 km) |
| Seclin to Lillers | 24.06 mi (38.72 km) |
| Seclin to Limay | 121.96 mi (196.28 km) |
| Seclin to Limeil-Brevannes | 126.83 mi (204.11 km) |
| Seclin to Limoges | 335.63 mi (540.14 km) |
| Seclin to Limoux | 519.02 mi (835.27 km) |
