| Saarlouis to Leopoldsburg | 140.83 mi (226.64 km) |
| Saarlouis to Lessines | 161.61 mi (260.09 km) |
| Saarlouis to Leuven | 141.31 mi (227.41 km) |
| Saarlouis to Lichtervelde | 199.16 mi (320.52 km) |
| Saarlouis to Liedekerke | 159.49 mi (256.67 km) |
| Saarlouis to Liege | 105.36 mi (169.56 km) |
| Saarlouis to Lierre | 158.31 mi (254.78 km) |
| Saarlouis to Lille | 157.15 mi (252.91 km) |
| Saarlouis to Lint | 159.70 mi (257.02 km) |
| Saarlouis to Lochristi | 178.35 mi (287.02 km) |
| Saarlouis to Lokeren | 173.61 mi (279.40 km) |
| Saarlouis to Lommel | 146.76 mi (236.19 km) |
| Saarlouis to Londerzeel | 159.01 mi (255.90 km) |
| Saarlouis to Louvain-la-Neuve | 136.70 mi (219.99 km) |
| Saarlouis to Lovendegem | 185.94 mi (299.24 km) |
