| Serpa to Leopoldsburg | 1,105.19 mi (1,778.63 km) |
| Serpa to Lessines | 1,045.15 mi (1,682.01 km) |
| Serpa to Leuven | 1,077.42 mi (1,733.94 km) |
| Serpa to Lichtervelde | 1,045.23 mi (1,682.13 km) |
| Serpa to Liedekerke | 1,060.00 mi (1,705.90 km) |
| Serpa to Liege | 1,089.02 mi (1,752.60 km) |
| Serpa to Lierre | 1,087.40 mi (1,750.01 km) |
| Serpa to Lille | 1,099.96 mi (1,770.21 km) |
| Serpa to Lint | 1,084.29 mi (1,744.99 km) |
| Serpa to Lochristi | 1,066.48 mi (1,716.33 km) |
| Serpa to Lokeren | 1,070.32 mi (1,722.51 km) |
| Serpa to Lommel | 1,113.07 mi (1,791.32 km) |
| Serpa to Londerzeel | 1,073.04 mi (1,726.90 km) |
| Serpa to Louvain-la-Neuve | 1,060.28 mi (1,706.35 km) |
| Serpa to Lovendegem | 1,060.57 mi (1,706.83 km) |
