| Harpenden to Liria | 842.45 mi (1,355.79 km) |
| Harpenden to Llagostera | 706.79 mi (1,137.47 km) |
| Harpenden to Llanera | 632.32 mi (1,017.62 km) |
| Harpenden to Llanes | 615.01 mi (989.77 km) |
| Harpenden to Lleida | 706.33 mi (1,136.73 km) |
| Harpenden to Lloret de Mar | 714.95 mi (1,150.59 km) |
| Harpenden to Lluchmayor | 865.79 mi (1,393.36 km) |
| Harpenden to Loeches | 803.22 mi (1,292.65 km) |
| Harpenden to Logrono | 653.57 mi (1,051.81 km) |
| Harpenden to Loja | 1,029.07 mi (1,656.12 km) |
| Harpenden to Lora del Rio | 1,010.51 mi (1,626.26 km) |
| Harpenden to Lorca | 978.99 mi (1,575.54 km) |
| Harpenden to Los Alcazares | 972.71 mi (1,565.43 km) |
| Harpenden to Los Barrios | 1,109.21 mi (1,785.10 km) |
| Harpenden to Los Corrales de Buelna | 615.78 mi (991.01 km) |
