| Watford to Leini | 580.77 mi (934.65 km) |
| Watford to Lendinara | 712.07 mi (1,145.96 km) |
| Watford to Leno | 650.37 mi (1,046.67 km) |
| Watford to Lentate sul Seveso | 598.38 mi (963.01 km) |
| Watford to Lentini | 1,244.50 mi (2,002.83 km) |
| Watford to Leonforte | 1,205.93 mi (1,940.76 km) |
| Watford to Lequile | 1,180.07 mi (1,899.13 km) |
| Watford to Lerici | 707.49 mi (1,138.59 km) |
| Watford to Leverano | 1,179.15 mi (1,897.67 km) |
| Watford to Licata | 1,224.76 mi (1,971.06 km) |
| Watford to Limbiate | 602.77 mi (970.06 km) |
| Watford to Lipari | 1,174.56 mi (1,890.27 km) |
| Watford to Lissone | 605.72 mi (974.81 km) |
| Watford to Livorno | 748.21 mi (1,204.13 km) |
| Watford to Lizzanello | 1,182.92 mi (1,903.73 km) |
