| Siegburg to Lagoa | 1,834.35 mi (2,952.10 km) |
| Siegburg to Lagos | 1,227.32 mi (1,975.19 km) |
| Siegburg to Lamego | 981.17 mi (1,579.04 km) |
| Siegburg to Leiria | 1,085.79 mi (1,747.41 km) |
| Siegburg to Lisbon | 1,152.51 mi (1,854.78 km) |
| Siegburg to Loule | 1,203.86 mi (1,937.43 km) |
| Siegburg to Loures | 1,147.22 mi (1,846.28 km) |
| Siegburg to Lourinha | 1,130.28 mi (1,819.01 km) |
| Siegburg to Lousa | 1,047.76 mi (1,686.21 km) |
| Siegburg to Lousada | 986.11 mi (1,586.98 km) |
| Siegburg to Macedo de Cavaleiros | 929.23 mi (1,495.46 km) |
| Siegburg to Mafamude | 1,008.34 mi (1,622.77 km) |
| Siegburg to Mafra | 1,146.98 mi (1,845.89 km) |
| Siegburg to Maia | 1,002.87 mi (1,613.96 km) |
| Siegburg to Mangualde | 1,005.31 mi (1,617.88 km) |
