| Portes-les-Valence to Lagoa | 1,644.54 mi (2,646.64 km) |
| Portes-les-Valence to Lagos | 885.50 mi (1,425.07 km) |
| Portes-les-Valence to Lamego | 691.20 mi (1,112.38 km) |
| Portes-les-Valence to Leiria | 781.93 mi (1,258.40 km) |
| Portes-les-Valence to Lisbon | 836.39 mi (1,346.04 km) |
| Portes-les-Valence to Loule | 855.80 mi (1,377.27 km) |
| Portes-les-Valence to Loures | 832.87 mi (1,340.37 km) |
| Portes-les-Valence to Lourinha | 823.49 mi (1,325.27 km) |
| Portes-les-Valence to Lousa | 743.92 mi (1,197.22 km) |
| Portes-les-Valence to Lousada | 705.41 mi (1,135.25 km) |
| Portes-les-Valence to Macedo de Cavaleiros | 638.36 mi (1,027.34 km) |
| Portes-les-Valence to Mafamude | 727.94 mi (1,171.51 km) |
| Portes-les-Valence to Mafra | 836.02 mi (1,345.45 km) |
| Portes-les-Valence to Maia | 725.10 mi (1,166.93 km) |
| Portes-les-Valence to Mangualde | 704.86 mi (1,134.36 km) |
