| Sierning to Lagoa | 2,113.33 mi (3,401.08 km) |
| Sierning to Lagos | 1,384.15 mi (2,227.57 km) |
| Sierning to Lamego | 1,184.30 mi (1,905.94 km) |
| Sierning to Leiria | 1,278.63 mi (2,057.75 km) |
| Sierning to Lisbon | 1,334.87 mi (2,148.26 km) |
| Sierning to Loule | 1,353.88 mi (2,178.86 km) |
| Sierning to Loures | 1,331.17 mi (2,142.32 km) |
| Sierning to Lourinha | 1,320.87 mi (2,125.73 km) |
| Sierning to Lousa | 1,240.33 mi (1,996.12 km) |
| Sierning to Lousada | 1,196.40 mi (1,925.42 km) |
| Sierning to Macedo de Cavaleiros | 1,130.94 mi (1,820.07 km) |
| Sierning to Mafamude | 1,219.17 mi (1,962.06 km) |
| Sierning to Mafra | 1,333.98 mi (2,146.84 km) |
| Sierning to Maia | 1,215.59 mi (1,956.31 km) |
| Sierning to Mangualde | 1,200.33 mi (1,931.74 km) |
