| Prospect Heights to Leopoldsburg | 4,163.57 mi (6,700.62 km) |
| Prospect Heights to Lessines | 4,124.82 mi (6,638.26 km) |
| Prospect Heights to Leuven | 4,151.33 mi (6,680.91 km) |
| Prospect Heights to Lichtervelde | 4,087.42 mi (6,578.07 km) |
| Prospect Heights to Liedekerke | 4,128.88 mi (6,644.80 km) |
| Prospect Heights to Liege | 4,192.56 mi (6,747.27 km) |
| Prospect Heights to Lierre | 4,137.44 mi (6,658.56 km) |
| Prospect Heights to Lille | 4,143.76 mi (6,668.73 km) |
| Prospect Heights to Lint | 4,134.93 mi (6,654.52 km) |
| Prospect Heights to Lochristi | 4,111.30 mi (6,616.49 km) |
| Prospect Heights to Lokeren | 4,116.90 mi (6,625.50 km) |
| Prospect Heights to Lommel | 4,161.63 mi (6,697.50 km) |
| Prospect Heights to Londerzeel | 4,132.25 mi (6,650.21 km) |
| Prospect Heights to Louvain-la-Neuve | 4,151.61 mi (6,681.37 km) |
| Prospect Heights to Lovendegem | 4,102.58 mi (6,602.46 km) |
