| Portsmouth to Legionowo | 945.55 mi (1,521.71 km) |
| Portsmouth to Legnica | 748.63 mi (1,204.81 km) |
| Portsmouth to Leszno | 764.30 mi (1,230.02 km) |
| Portsmouth to Lezajsk | 1,029.21 mi (1,656.35 km) |
| Portsmouth to Libiaz | 896.08 mi (1,442.11 km) |
| Portsmouth to Lidzbark | 901.36 mi (1,450.60 km) |
| Portsmouth to Lidzbark Warminski | 936.46 mi (1,507.08 km) |
| Portsmouth to Limanowa | 950.12 mi (1,529.07 km) |
| Portsmouth to Lipno | 873.31 mi (1,405.45 km) |
| Portsmouth to Lobez | 731.63 mi (1,177.44 km) |
| Portsmouth to Lodz | 887.15 mi (1,427.74 km) |
| Portsmouth to Lomianki | 945.73 mi (1,522.00 km) |
| Portsmouth to Lomza | 994.37 mi (1,600.29 km) |
| Portsmouth to Lowicz | 906.25 mi (1,458.47 km) |
| Portsmouth to Lubaczow | 1,060.43 mi (1,706.60 km) |
