| Potomac to Le Locle | 4,069.02 mi (6,548.46 km) |
| Potomac to Le Mont-sur-Lausanne | 4,079.73 mi (6,565.70 km) |
| Potomac to Lenzburg | 4,119.70 mi (6,630.02 km) |
| Potomac to Liestal | 4,098.27 mi (6,595.53 km) |
| Potomac to Littau | 4,133.30 mi (6,651.90 km) |
| Potomac to Locarno | 4,183.46 mi (6,732.64 km) |
| Potomac to Lucerne | 4,134.80 mi (6,654.32 km) |
| Potomac to Lugano | 4,195.07 mi (6,751.31 km) |
| Potomac to Lutry | 4,082.80 mi (6,570.63 km) |
| Potomac to Lyss | 4,092.03 mi (6,585.48 km) |
| Potomac to Mannedorf | 4,144.97 mi (6,670.68 km) |
| Potomac to Martigny | 4,111.36 mi (6,616.60 km) |
| Potomac to Mattenhof | 4,140.15 mi (6,662.93 km) |
| Potomac to Maur | 4,141.41 mi (6,664.95 km) |
| Potomac to Meilen | 4,142.16 mi (6,666.17 km) |
