| Portugalete to Leopoldsburg | 663.23 mi (1,067.37 km) |
| Portugalete to Lessines | 603.92 mi (971.91 km) |
| Portugalete to Leuven | 635.59 mi (1,022.88 km) |
| Portugalete to Lichtervelde | 605.77 mi (974.89 km) |
| Portugalete to Liedekerke | 618.67 mi (995.66 km) |
| Portugalete to Liege | 647.01 mi (1,041.27 km) |
| Portugalete to Lierre | 645.91 mi (1,039.49 km) |
| Portugalete to Lille | 658.34 mi (1,059.49 km) |
| Portugalete to Lint | 642.85 mi (1,034.56 km) |
| Portugalete to Lochristi | 625.84 mi (1,007.18 km) |
| Portugalete to Lokeren | 629.45 mi (1,013.01 km) |
| Portugalete to Lommel | 671.15 mi (1,080.12 km) |
| Portugalete to Londerzeel | 631.65 mi (1,016.54 km) |
| Portugalete to Louvain-la-Neuve | 618.40 mi (995.23 km) |
| Portugalete to Lovendegem | 620.32 mi (998.32 km) |
