| Mont-de-Marsan to Lagoa | 1,372.21 mi (2,208.35 km) |
| Mont-de-Marsan to Lagos | 635.21 mi (1,022.27 km) |
| Mont-de-Marsan to Lamego | 419.10 mi (674.47 km) |
| Mont-de-Marsan to Leiria | 513.87 mi (826.99 km) |
| Mont-de-Marsan to Lisbon | 572.95 mi (922.07 km) |
| Mont-de-Marsan to Loule | 609.41 mi (980.75 km) |
| Mont-de-Marsan to Loures | 568.74 mi (915.29 km) |
| Mont-de-Marsan to Lourinha | 556.72 mi (895.95 km) |
| Mont-de-Marsan to Lousa | 475.43 mi (765.13 km) |
| Mont-de-Marsan to Lousada | 432.21 mi (695.58 km) |
| Mont-de-Marsan to Macedo de Cavaleiros | 365.87 mi (588.81 km) |
| Mont-de-Marsan to Mafamude | 454.87 mi (732.04 km) |
| Mont-de-Marsan to Mafra | 570.72 mi (918.49 km) |
| Mont-de-Marsan to Maia | 451.75 mi (727.02 km) |
| Mont-de-Marsan to Mangualde | 435.03 mi (700.11 km) |
