| South Portland to Katwijk | 3,353.09 mi (5,396.28 km) |
| South Portland to Kerkrade | 3,453.66 mi (5,558.13 km) |
| South Portland to Klazienaveen | 3,439.67 mi (5,535.61 km) |
| South Portland to Koog aan de Zaan | 3,361.48 mi (5,409.77 km) |
| South Portland to Krimpen aan den IJssel | 3,366.84 mi (5,418.40 km) |
| South Portland to Krommenie | 3,359.34 mi (5,406.33 km) |
| South Portland to Kudelstaart | 3,365.31 mi (5,415.94 km) |
| South Portland to Landgraaf | 3,451.04 mi (5,553.92 km) |
| South Portland to Landsmeer | 3,366.89 mi (5,418.49 km) |
| South Portland to Langedijk | 3,355.59 mi (5,400.30 km) |
| South Portland to Laren | 3,383.98 mi (5,445.99 km) |
| South Portland to Leek | 3,405.28 mi (5,480.26 km) |
| South Portland to Leerdam | 3,387.72 mi (5,452.00 km) |
| South Portland to Leeuwarden | 3,381.32 mi (5,441.70 km) |
| South Portland to Leiden | 3,356.99 mi (5,402.55 km) |
