| Opmeer to Lagoa | 1,788.14 mi (2,877.73 km) |
| Opmeer to Lagos | 1,262.47 mi (2,031.75 km) |
| Opmeer to Lamego | 999.43 mi (1,608.43 km) |
| Opmeer to Leiria | 1,106.18 mi (1,780.22 km) |
| Opmeer to Lisbon | 1,176.56 mi (1,893.49 km) |
| Opmeer to Loule | 1,242.97 mi (2,000.36 km) |
| Opmeer to Loures | 1,170.57 mi (1,883.86 km) |
| Opmeer to Lourinha | 1,150.54 mi (1,851.62 km) |
| Opmeer to Lousa | 1,069.54 mi (1,721.26 km) |
| Opmeer to Lousada | 1,000.06 mi (1,609.44 km) |
| Opmeer to Macedo de Cavaleiros | 950.38 mi (1,529.49 km) |
| Opmeer to Mafamude | 1,021.17 mi (1,643.42 km) |
| Opmeer to Mafra | 1,168.71 mi (1,880.85 km) |
| Opmeer to Maia | 1,014.78 mi (1,633.14 km) |
| Opmeer to Mangualde | 1,027.23 mi (1,653.16 km) |
