| Guyancourt to Leopoldsburg | 215.09 mi (346.15 km) |
| Guyancourt to Lessines | 155.67 mi (250.52 km) |
| Guyancourt to Leuven | 187.04 mi (301.01 km) |
| Guyancourt to Lichtervelde | 163.23 mi (262.70 km) |
| Guyancourt to Liedekerke | 170.23 mi (273.96 km) |
| Guyancourt to Liege | 202.63 mi (326.11 km) |
| Guyancourt to Lierre | 197.24 mi (317.42 km) |
| Guyancourt to Lille | 209.61 mi (337.34 km) |
| Guyancourt to Lint | 194.23 mi (312.59 km) |
| Guyancourt to Lochristi | 178.89 mi (287.90 km) |
| Guyancourt to Lokeren | 181.91 mi (292.75 km) |
| Guyancourt to Lommel | 222.83 mi (358.61 km) |
| Guyancourt to Londerzeel | 183.10 mi (294.66 km) |
| Guyancourt to Louvain-la-Neuve | 169.96 mi (273.53 km) |
| Guyancourt to Lovendegem | 174.61 mi (281.01 km) |
