| Potomac to Kloten | 4,134.44 mi (6,653.73 km) |
| Potomac to Koniz | 4,100.29 mi (6,598.78 km) |
| Potomac to Kreuzlingen | 4,153.16 mi (6,683.86 km) |
| Potomac to Kriens | 4,134.61 mi (6,654.01 km) |
| Potomac to Kusnacht | 4,138.53 mi (6,660.32 km) |
| Potomac to Kussnacht | 4,139.91 mi (6,662.54 km) |
| Potomac to La Chaux-de-Fonds | 4,070.85 mi (6,551.40 km) |
| Potomac to La Tour-de-Peilz | 4,092.16 mi (6,585.69 km) |
| Potomac to Lachen | 4,153.84 mi (6,684.95 km) |
| Potomac to Landecy | 4,067.94 mi (6,546.71 km) |
| Potomac to Landquart | 4,189.93 mi (6,743.04 km) |
| Potomac to Langenthal | 4,107.93 mi (6,611.07 km) |
| Potomac to Langnau | 4,116.32 mi (6,624.57 km) |
| Potomac to Lausanne | 4,080.07 mi (6,566.24 km) |
| Potomac to Le Grand-Saconnex | 4,066.45 mi (6,544.32 km) |
