| Portici to Lagoa | 2,127.14 mi (3,423.31 km) |
| Portici to Lagos | 1,258.93 mi (2,026.06 km) |
| Portici to Lamego | 1,152.82 mi (1,855.28 km) |
| Portici to Leiria | 1,218.39 mi (1,960.81 km) |
| Portici to Lisbon | 1,252.05 mi (2,014.98 km) |
| Portici to Loule | 1,222.81 mi (1,967.92 km) |
| Portici to Loures | 1,251.12 mi (2,013.49 km) |
| Portici to Lourinha | 1,251.78 mi (2,014.55 km) |
| Portici to Lousa | 1,185.07 mi (1,907.18 km) |
| Portici to Lousada | 1,173.58 mi (1,888.69 km) |
| Portici to Macedo de Cavaleiros | 1,106.08 mi (1,780.06 km) |
| Portici to Mafamude | 1,193.75 mi (1,921.16 km) |
| Portici to Mafra | 1,258.00 mi (2,024.56 km) |
| Portici to Maia | 1,193.52 mi (1,920.78 km) |
| Portici to Mangualde | 1,154.57 mi (1,858.10 km) |
