| London Colney to Leigh | 153.66 mi (247.30 km) |
| London Colney to Leigh-on-Sea | 42.81 mi (68.90 km) |
| London Colney to Leighton Buzzard | 20.29 mi (32.66 km) |
| London Colney to Leith | 316.27 mi (508.99 km) |
| London Colney to Lemington | 231.82 mi (373.07 km) |
| London Colney to Leominster | 109.42 mi (176.10 km) |
| London Colney to Lerwick | 583.29 mi (938.72 km) |
| London Colney to Letchworth | 17.67 mi (28.43 km) |
| London Colney to Leven | 327.56 mi (527.16 km) |
| London Colney to Lewes | 60.34 mi (97.11 km) |
| London Colney to Leyland | 168.86 mi (271.75 km) |
| London Colney to Leyton | 16.29 mi (26.22 km) |
| London Colney to Lichfield | 92.49 mi (148.85 km) |
| London Colney to Lincoln | 104.28 mi (167.83 km) |
| London Colney to Linlithgow | 323.26 mi (520.24 km) |
