| Grottaferrata to Lagoa | 2,033.72 mi (3,272.95 km) |
| Grottaferrata to Lagos | 1,180.47 mi (1,899.78 km) |
| Grottaferrata to Lamego | 1,059.34 mi (1,704.85 km) |
| Grottaferrata to Leiria | 1,129.36 mi (1,817.53 km) |
| Grottaferrata to Lisbon | 1,166.63 mi (1,877.51 km) |
| Grottaferrata to Loule | 1,145.00 mi (1,842.69 km) |
| Grottaferrata to Loures | 1,165.28 mi (1,875.34 km) |
| Grottaferrata to Lourinha | 1,164.33 mi (1,873.81 km) |
| Grottaferrata to Lousa | 1,095.02 mi (1,762.26 km) |
| Grottaferrata to Lousada | 1,079.26 mi (1,736.89 km) |
| Grottaferrata to Macedo de Cavaleiros | 1,011.31 mi (1,627.54 km) |
| Grottaferrata to Mafamude | 1,099.94 mi (1,770.18 km) |
| Grottaferrata to Mafra | 1,171.62 mi (1,885.54 km) |
| Grottaferrata to Maia | 1,099.30 mi (1,769.15 km) |
| Grottaferrata to Mangualde | 1,062.93 mi (1,710.62 km) |
