| Den Helder to Lagoa | 1,786.87 mi (2,875.69 km) |
| Den Helder to Lagos | 1,270.50 mi (2,044.67 km) |
| Den Helder to Lamego | 1,006.05 mi (1,619.08 km) |
| Den Helder to Leiria | 1,112.87 mi (1,790.99 km) |
| Den Helder to Lisbon | 1,183.54 mi (1,904.72 km) |
| Den Helder to Loule | 1,251.41 mi (2,013.95 km) |
| Den Helder to Loures | 1,177.49 mi (1,894.99 km) |
| Den Helder to Lourinha | 1,157.16 mi (1,862.27 km) |
| Den Helder to Lousa | 1,076.42 mi (1,732.33 km) |
| Den Helder to Lousada | 1,006.23 mi (1,619.37 km) |
| Den Helder to Macedo de Cavaleiros | 957.38 mi (1,540.75 km) |
| Den Helder to Mafamude | 1,027.19 mi (1,653.10 km) |
| Den Helder to Mafra | 1,175.46 mi (1,891.72 km) |
| Den Helder to Maia | 1,020.72 mi (1,642.69 km) |
| Den Helder to Mangualde | 1,034.18 mi (1,664.35 km) |
