| Middle River to Lagoa | 3,601.60 mi (5,796.22 km) |
| Middle River to Lagoa | 2,712.76 mi (4,365.77 km) |
| Middle River to Lagos | 3,591.33 mi (5,779.69 km) |
| Middle River to Lamego | 3,524.09 mi (5,671.47 km) |
| Middle River to Leiria | 3,511.51 mi (5,651.22 km) |
| Middle River to Lisbon | 3,521.95 mi (5,668.03 km) |
| Middle River to Loule | 3,623.61 mi (5,831.64 km) |
| Middle River to Loures | 3,518.17 mi (5,661.95 km) |
| Middle River to Lourinha | 3,500.76 mi (5,633.93 km) |
| Middle River to Lousa | 3,528.89 mi (5,679.20 km) |
| Middle River to Lousada | 3,498.21 mi (5,629.83 km) |
| Middle River to Macedo de Cavaleiros | 3,553.51 mi (5,718.83 km) |
| Middle River to Mafamude | 3,485.39 mi (5,609.19 km) |
| Middle River to Mafra | 3,507.08 mi (5,644.09 km) |
| Middle River to Maia | 3,481.74 mi (5,603.32 km) |
