| Harrow to Lastra a Signa | 756.79 mi (1,217.94 km) |
| Harrow to Laterza | 1,111.62 mi (1,788.98 km) |
| Harrow to Latiano | 1,148.86 mi (1,848.92 km) |
| Harrow to Latina | 938.04 mi (1,509.62 km) |
| Harrow to Latisana | 731.59 mi (1,177.38 km) |
| Harrow to Lauria Inferiore | 1,109.70 mi (1,785.89 km) |
| Harrow to Lavagna | 671.74 mi (1,081.06 km) |
| Harrow to Lavello | 1,055.53 mi (1,698.72 km) |
| Harrow to Laveno-Mombello | 565.47 mi (910.04 km) |
| Harrow to Lavis | 641.73 mi (1,032.77 km) |
| Harrow to Lecce | 1,174.17 mi (1,889.65 km) |
| Harrow to Lecco | 594.36 mi (956.54 km) |
| Harrow to Legnago | 692.18 mi (1,113.96 km) |
| Harrow to Legnano | 592.03 mi (952.78 km) |
| Harrow to Legnaro | 708.17 mi (1,139.69 km) |
