| Signa to Lagoa | 1,947.58 mi (3,134.33 km) |
| Signa to Lagos | 1,133.86 mi (1,824.77 km) |
| Signa to Lamego | 979.57 mi (1,576.46 km) |
| Signa to Leiria | 1,059.80 mi (1,705.59 km) |
| Signa to Lisbon | 1,105.05 mi (1,778.40 km) |
| Signa to Loule | 1,100.24 mi (1,770.66 km) |
| Signa to Loures | 1,102.74 mi (1,774.69 km) |
| Signa to Lourinha | 1,098.09 mi (1,767.20 km) |
| Signa to Lousa | 1,023.42 mi (1,647.04 km) |
| Signa to Lousada | 997.00 mi (1,604.51 km) |
| Signa to Macedo de Cavaleiros | 928.74 mi (1,494.66 km) |
| Signa to Mafamude | 1,018.76 mi (1,639.54 km) |
| Signa to Mafra | 1,107.76 mi (1,782.77 km) |
| Signa to Maia | 1,017.06 mi (1,636.80 km) |
| Signa to Mangualde | 987.82 mi (1,589.74 km) |
