| Slough to Lowell (Indiana) | 3,949.13 mi (6,355.51 km) |
| Slough to Lowell (Massachusetts) | 3,251.39 mi (5,232.61 km) |
| Slough to Lower Burrell (Pennsylvania) | 3,679.11 mi (5,920.96 km) |
| Slough to Lowes Island (Virginia) | 3,652.39 mi (5,877.96 km) |
| Slough to Lubbock (Texas) | 4,882.31 mi (7,857.33 km) |
| Slough to Lufkin (Texas) | 4,724.39 mi (7,603.16 km) |
| Slough to Luling (Louisiana) | 4,622.09 mi (7,438.53 km) |
| Slough to Lumberton (North Carolina) | 3,924.74 mi (6,316.26 km) |
| Slough to Lumberton (Texas) | 4,758.64 mi (7,658.29 km) |
| Slough to Lutz (Florida) | 4,384.49 mi (7,056.15 km) |
| Slough to Lynbrook (New York) | 3,431.14 mi (5,521.88 km) |
| Slough to Lynchburg (Virginia) | 3,802.42 mi (6,119.41 km) |
| Slough to Lynden (Washington) | 4,698.91 mi (7,562.16 km) |
| Slough to Lyndhurst (Ohio) | 3,708.01 mi (5,967.47 km) |
| Slough to Lyndon (Kentucky) | 4,019.61 mi (6,468.94 km) |
