| Potomac to Legionowo | 4,449.37 mi (7,160.56 km) |
| Potomac to Legnica | 4,316.43 mi (6,946.62 km) |
| Potomac to Leszno | 4,310.89 mi (6,937.71 km) |
| Potomac to Lezajsk | 4,584.77 mi (7,378.48 km) |
| Potomac to Libiaz | 4,474.43 mi (7,200.89 km) |
| Potomac to Lidzbark | 4,380.78 mi (7,050.18 km) |
| Potomac to Lidzbark Warminski | 4,377.65 mi (7,045.14 km) |
| Potomac to Limanowa | 4,530.95 mi (7,291.86 km) |
| Potomac to Lipno | 4,371.61 mi (7,035.42 km) |
| Potomac to Lobez | 4,216.94 mi (6,786.51 km) |
| Potomac to Lodz | 4,419.71 mi (7,112.83 km) |
| Potomac to Lomianki | 4,451.77 mi (7,164.44 km) |
| Potomac to Lomza | 4,463.50 mi (7,183.31 km) |
| Potomac to Lowicz | 4,425.74 mi (7,122.54 km) |
| Potomac to Lubaczow | 4,614.43 mi (7,426.20 km) |
