| Slough to Legionowo | 912.98 mi (1,469.30 km) |
| Slough to Legnica | 721.33 mi (1,160.87 km) |
| Slough to Leszno | 734.25 mi (1,181.65 km) |
| Slough to Lezajsk | 1,002.92 mi (1,614.04 km) |
| Slough to Libiaz | 871.84 mi (1,403.08 km) |
| Slough to Lidzbark | 866.13 mi (1,393.89 km) |
| Slough to Lidzbark Warminski | 898.73 mi (1,446.36 km) |
| Slough to Limanowa | 926.68 mi (1,491.35 km) |
| Slough to Lipno | 839.39 mi (1,350.86 km) |
| Slough to Lobez | 694.52 mi (1,117.72 km) |
| Slough to Lodz | 856.86 mi (1,378.99 km) |
| Slough to Lomianki | 913.37 mi (1,469.92 km) |
| Slough to Lomza | 959.39 mi (1,543.99 km) |
| Slough to Lowicz | 874.78 mi (1,407.82 km) |
| Slough to Lubaczow | 1,034.19 mi (1,664.37 km) |
