| Prospect Heights to Live Oak (Texas) | 1,043.22 mi (1,678.91 km) |
| Prospect Heights to Livermore (California) | 1,807.17 mi (2,908.36 km) |
| Prospect Heights to Livingston (California) | 1,761.39 mi (2,834.68 km) |
| Prospect Heights to Livonia (Michigan) | 233.73 mi (376.15 km) |
| Prospect Heights to Lochearn (Maryland) | 615.89 mi (991.17 km) |
| Prospect Heights to Lockhart (Florida) | 999.62 mi (1,608.73 km) |
| Prospect Heights to Lockhart (Texas) | 1,003.90 mi (1,615.62 km) |
| Prospect Heights to Lockport (Illinois) | 35.86 mi (57.71 km) |
| Prospect Heights to Lockport (New York) | 474.70 mi (763.96 km) |
| Prospect Heights to Lodi (California) | 1,772.95 mi (2,853.28 km) |
| Prospect Heights to Lodi (New Jersey) | 720.74 mi (1,159.92 km) |
| Prospect Heights to Logan (Utah) | 1,225.71 mi (1,972.59 km) |
| Prospect Heights to Logansport (Indiana) | 124.26 mi (199.98 km) |
| Prospect Heights to Loganville (Georgia) | 611.84 mi (984.66 km) |
| Prospect Heights to Loma Linda (California) | 1,679.42 mi (2,702.77 km) |
