| Slidell to Lovington (New Mexico) | 816.80 mi (1,314.52 km) |
| Slidell to Lowell (Indiana) | 771.60 mi (1,241.76 km) |
| Slidell to Lowell (Massachusetts) | 1,329.08 mi (2,138.95 km) |
| Slidell to Lower Burrell (Pennsylvania) | 908.08 mi (1,461.41 km) |
| Slidell to Lowes Island (Virginia) | 928.53 mi (1,494.32 km) |
| Slidell to Lubbock (Texas) | 744.54 mi (1,198.22 km) |
| Slidell to Lufkin (Texas) | 301.98 mi (485.99 km) |
| Slidell to Luling (Louisiana) | 43.33 mi (69.73 km) |
| Slidell to Lumberton (North Carolina) | 695.04 mi (1,118.55 km) |
| Slidell to Lumberton (Texas) | 263.99 mi (424.85 km) |
| Slidell to Lutz (Florida) | 466.54 mi (750.82 km) |
| Slidell to Lynbrook (New York) | 1,152.11 mi (1,854.15 km) |
| Slidell to Lynchburg (Virginia) | 780.67 mi (1,256.37 km) |
| Slidell to Lynden (Washington) | 2,137.78 mi (3,440.42 km) |
| Slidell to Lyndhurst (Ohio) | 902.92 mi (1,453.12 km) |
