| Upminster to Linslade | 47.19 mi (75.95 km) |
| Upminster to Lisburn | 331.49 mi (533.49 km) |
| Upminster to Liskeard | 218.69 mi (351.94 km) |
| Upminster to Litherland | 190.28 mi (306.23 km) |
| Upminster to Little Bookham | 33.53 mi (53.97 km) |
| Upminster to Little Hulton | 176.58 mi (284.17 km) |
| Upminster to Little Lever | 177.03 mi (284.90 km) |
| Upminster to Littleborough | 174.73 mi (281.20 km) |
| Upminster to Littlehampton | 61.93 mi (99.67 km) |
| Upminster to Littleover | 119.27 mi (191.95 km) |
| Upminster to Littleport | 62.30 mi (100.26 km) |
| Upminster to Liverpool | 187.03 mi (301.00 km) |
| Upminster to Liversedge | 169.44 mi (272.69 km) |
| Upminster to Livingston | 336.23 mi (541.11 km) |
| Upminster to Llanelli | 189.54 mi (305.04 km) |
