| Harpenden to Leini | 587.81 mi (945.99 km) |
| Harpenden to Lendinara | 717.05 mi (1,153.98 km) |
| Harpenden to Leno | 655.85 mi (1,055.49 km) |
| Harpenden to Lentate sul Seveso | 604.25 mi (972.44 km) |
| Harpenden to Lentini | 1,251.47 mi (2,014.04 km) |
| Harpenden to Leonforte | 1,213.01 mi (1,952.15 km) |
| Harpenden to Lequile | 1,184.93 mi (1,906.95 km) |
| Harpenden to Lerici | 713.97 mi (1,149.02 km) |
| Harpenden to Leverano | 1,184.04 mi (1,905.53 km) |
| Harpenden to Licata | 1,232.13 mi (1,982.93 km) |
| Harpenden to Limbiate | 608.69 mi (979.59 km) |
| Harpenden to Lipari | 1,181.20 mi (1,900.96 km) |
| Harpenden to Lissone | 611.56 mi (984.20 km) |
| Harpenden to Livorno | 754.77 mi (1,214.69 km) |
| Harpenden to Lizzanello | 1,187.75 mi (1,911.50 km) |
