| Watford to Lizzano | 1,151.27 mi (1,852.79 km) |
| Watford to Locate di Triulzi | 618.25 mi (994.97 km) |
| Watford to Locorotondo | 1,128.27 mi (1,815.78 km) |
| Watford to Locri | 1,228.38 mi (1,976.89 km) |
| Watford to Lodi | 629.17 mi (1,012.56 km) |
| Watford to Lomazzo | 594.38 mi (956.56 km) |
| Watford to Lonate Pozzolo | 590.31 mi (950.01 km) |
| Watford to Lonigo | 690.21 mi (1,110.79 km) |
| Watford to Loreto | 862.73 mi (1,388.44 km) |
| Watford to Loria | 691.47 mi (1,112.81 km) |
| Watford to Lucca | 738.60 mi (1,188.66 km) |
| Watford to Lucera | 1,020.84 mi (1,642.89 km) |
| Watford to Lugo | 755.63 mi (1,216.07 km) |
| Watford to Luino | 569.93 mi (917.22 km) |
| Watford to Lurate Caccivio | 589.91 mi (949.37 km) |
