| Key West to Lowell (Indiana) | 1,200.45 mi (1,931.94 km) |
| Key West to Lowell (Massachusetts) | 1,383.59 mi (2,226.68 km) |
| Key West to Lower Burrell (Pennsylvania) | 1,113.12 mi (1,791.39 km) |
| Key West to Lowes Island (Virginia) | 1,033.48 mi (1,663.22 km) |
| Key West to Lubbock (Texas) | 1,361.03 mi (2,190.36 km) |
| Key West to Lufkin (Texas) | 917.00 mi (1,475.77 km) |
| Key West to Luling (Louisiana) | 642.65 mi (1,034.24 km) |
| Key West to Lumberton (North Carolina) | 714.94 mi (1,150.58 km) |
| Key West to Lumberton (Texas) | 857.06 mi (1,379.30 km) |
| Key West to Lutz (Florida) | 250.48 mi (403.12 km) |
| Key West to Lynbrook (New York) | 1,206.45 mi (1,941.59 km) |
| Key West to Lynchburg (Virginia) | 899.91 mi (1,448.27 km) |
| Key West to Lynden (Washington) | 2,761.05 mi (4,443.48 km) |
| Key West to Lyndhurst (Ohio) | 1,171.45 mi (1,885.27 km) |
| Key West to Lyndon (Kentucky) | 972.65 mi (1,565.33 km) |
