| Prospect Heights to Lancaster (Texas) | 816.32 mi (1,313.75 km) |
| Prospect Heights to Land O' Lakes (Florida) | 1,008.21 mi (1,622.56 km) |
| Prospect Heights to Landover (Maryland) | 619.52 mi (997.01 km) |
| Prospect Heights to Langley Park (Maryland) | 613.09 mi (986.67 km) |
| Prospect Heights to Lanham (Maryland) | 620.67 mi (998.87 km) |
| Prospect Heights to Lansdale (Pennsylvania) | 669.48 mi (1,077.42 km) |
| Prospect Heights to Lansdowne (Pennsylvania) | 675.49 mi (1,087.09 km) |
| Prospect Heights to Lansdowne (Virginia) | 585.77 mi (942.71 km) |
| Prospect Heights to Lansing (Illinois) | 42.08 mi (67.73 km) |
| Prospect Heights to Lansing (Kansas) | 415.14 mi (668.11 km) |
| Prospect Heights to Lansing (Michigan) | 176.83 mi (284.59 km) |
| Prospect Heights to Lantana (Florida) | 1,161.24 mi (1,868.83 km) |
| Prospect Heights to Lantana (Texas) | 799.60 mi (1,286.83 km) |
| Prospect Heights to Laplace (Louisiana) | 843.23 mi (1,357.05 km) |
| Prospect Heights to Laramie (Wyoming) | 912.08 mi (1,467.85 km) |
