| Petite-Synthe to Lagoa | 1,640.77 mi (2,640.57 km) |
| Petite-Synthe to Lagos | 1,103.92 mi (1,776.58 km) |
| Petite-Synthe to Lamego | 839.38 mi (1,350.85 km) |
| Petite-Synthe to Leiria | 946.17 mi (1,522.71 km) |
| Petite-Synthe to Lisbon | 1,016.77 mi (1,636.33 km) |
| Petite-Synthe to Loule | 1,085.13 mi (1,746.34 km) |
| Petite-Synthe to Loures | 1,010.73 mi (1,626.61 km) |
| Petite-Synthe to Lourinha | 990.49 mi (1,594.05 km) |
| Petite-Synthe to Lousa | 909.67 mi (1,463.97 km) |
| Petite-Synthe to Lousada | 839.81 mi (1,351.55 km) |
| Petite-Synthe to Macedo de Cavaleiros | 790.60 mi (1,272.34 km) |
| Petite-Synthe to Mafamude | 860.89 mi (1,385.47 km) |
| Petite-Synthe to Mafra | 1,008.74 mi (1,623.41 km) |
| Petite-Synthe to Maia | 854.49 mi (1,375.17 km) |
| Petite-Synthe to Mangualde | 867.41 mi (1,395.96 km) |
