| Prospect Heights to Laurinburg (North Carolina) | 682.36 mi (1,098.16 km) |
| Prospect Heights to Lawndale (California) | 1,740.32 mi (2,800.77 km) |
| Prospect Heights to Lawrence (Indiana) | 184.59 mi (297.07 km) |
| Prospect Heights to Lawrence (Kansas) | 442.11 mi (711.51 km) |
| Prospect Heights to Lawrence (Massachusetts) | 854.90 mi (1,375.83 km) |
| Prospect Heights to Lawrenceburg (Kentucky) | 323.47 mi (520.57 km) |
| Prospect Heights to Lawrenceburg (Tennessee) | 474.66 mi (763.89 km) |
| Prospect Heights to Lawrenceville (Georgia) | 602.35 mi (969.39 km) |
| Prospect Heights to Lawton (Oklahoma) | 767.52 mi (1,235.21 km) |
| Prospect Heights to Layton (Utah) | 1,239.96 mi (1,995.53 km) |
| Prospect Heights to Le Mars (Iowa) | 422.90 mi (680.59 km) |
| Prospect Heights to League City (Texas) | 959.24 mi (1,543.74 km) |
| Prospect Heights to Lealman (Florida) | 1,030.05 mi (1,657.71 km) |
| Prospect Heights to Leander (Texas) | 968.27 mi (1,558.28 km) |
| Prospect Heights to Leavenworth (Kansas) | 413.56 mi (665.55 km) |
