| Castel San Giorgio to Lagoa | 2,146.08 mi (3,453.79 km) |
| Castel San Giorgio to Lagos | 1,277.48 mi (2,055.90 km) |
| Castel San Giorgio to Lamego | 1,171.75 mi (1,885.76 km) |
| Castel San Giorgio to Leiria | 1,237.30 mi (1,991.24 km) |
| Castel San Giorgio to Lisbon | 1,270.87 mi (2,045.27 km) |
| Castel San Giorgio to Loule | 1,241.32 mi (1,997.72 km) |
| Castel San Giorgio to Loures | 1,269.96 mi (2,043.80 km) |
| Castel San Giorgio to Lourinha | 1,270.66 mi (2,044.92 km) |
| Castel San Giorgio to Lousa | 1,203.99 mi (1,937.63 km) |
| Castel San Giorgio to Lousada | 1,192.51 mi (1,919.16 km) |
| Castel San Giorgio to Macedo de Cavaleiros | 1,125.00 mi (1,810.52 km) |
| Castel San Giorgio to Mafamude | 1,212.69 mi (1,951.64 km) |
| Castel San Giorgio to Mafra | 1,276.85 mi (2,054.89 km) |
| Castel San Giorgio to Maia | 1,212.45 mi (1,951.25 km) |
| Castel San Giorgio to Mangualde | 1,173.50 mi (1,888.57 km) |
