| Luxembourg to Lagoa | 1,765.97 mi (2,842.05 km) |
| Luxembourg to Lagos | 1,136.04 mi (1,828.28 km) |
| Luxembourg to Lamego | 894.10 mi (1,438.91 km) |
| Luxembourg to Leiria | 997.83 mi (1,605.85 km) |
| Luxembourg to Lisbon | 1,063.54 mi (1,711.60 km) |
| Luxembourg to Loule | 1,111.96 mi (1,789.52 km) |
| Luxembourg to Loures | 1,058.42 mi (1,703.35 km) |
| Luxembourg to Lourinha | 1,042.21 mi (1,677.28 km) |
| Luxembourg to Lousa | 959.60 mi (1,544.33 km) |
| Luxembourg to Lousada | 900.11 mi (1,448.59 km) |
| Luxembourg to Macedo de Cavaleiros | 841.69 mi (1,354.56 km) |
| Luxembourg to Mafamude | 922.54 mi (1,484.69 km) |
| Luxembourg to Mafra | 1,058.54 mi (1,703.55 km) |
| Luxembourg to Maia | 917.33 mi (1,476.31 km) |
| Luxembourg to Mangualde | 917.26 mi (1,476.19 km) |
