| Harrow on the Hill to Leopoldsburg | 243.13 mi (391.28 km) |
| Harrow on the Hill to Lessines | 189.85 mi (305.53 km) |
| Harrow on the Hill to Leuven | 222.76 mi (358.51 km) |
| Harrow on the Hill to Lichtervelde | 154.17 mi (248.11 km) |
| Harrow on the Hill to Liedekerke | 197.09 mi (317.19 km) |
| Harrow on the Hill to Liege | 263.90 mi (424.71 km) |
| Harrow on the Hill to Lierre | 213.48 mi (343.57 km) |
| Harrow on the Hill to Lille | 223.82 mi (360.20 km) |
| Harrow on the Hill to Lint | 210.13 mi (338.16 km) |
| Harrow on the Hill to Lochristi | 182.67 mi (293.98 km) |
| Harrow on the Hill to Lokeren | 189.04 mi (304.24 km) |
| Harrow on the Hill to Lommel | 244.54 mi (393.55 km) |
| Harrow on the Hill to Londerzeel | 203.95 mi (328.22 km) |
| Harrow on the Hill to Louvain-la-Neuve | 218.57 mi (351.75 km) |
| Harrow on the Hill to Lovendegem | 172.77 mi (278.04 km) |
