| Ciechanow to Leopoldsburg | 663.98 mi (1,068.57 km) |
| Ciechanow to Lessines | 731.37 mi (1,177.02 km) |
| Ciechanow to Leuven | 691.81 mi (1,113.37 km) |
| Ciechanow to Lichtervelde | 753.98 mi (1,213.41 km) |
| Ciechanow to Liedekerke | 717.79 mi (1,155.18 km) |
| Ciechanow to Liege | 661.04 mi (1,063.84 km) |
| Ciechanow to Lierre | 692.33 mi (1,114.20 km) |
| Ciechanow to Lille | 679.33 mi (1,093.28 km) |
| Ciechanow to Lint | 696.13 mi (1,120.31 km) |
| Ciechanow to Lochristi | 723.52 mi (1,164.39 km) |
| Ciechanow to Lokeren | 717.27 mi (1,154.33 km) |
| Ciechanow to Lommel | 659.20 mi (1,060.89 km) |
| Ciechanow to Londerzeel | 706.06 mi (1,136.29 km) |
| Ciechanow to Louvain-la-Neuve | 704.78 mi (1,134.24 km) |
| Ciechanow to Lovendegem | 733.23 mi (1,180.03 km) |
