| Thornton Heath to Lowell (Indiana) | 3,970.92 mi (6,390.58 km) |
| Thornton Heath to Lowell (Massachusetts) | 3,273.34 mi (5,267.94 km) |
| Thornton Heath to Lower Burrell (Pennsylvania) | 3,701.06 mi (5,956.28 km) |
| Thornton Heath to Lowes Island (Virginia) | 3,674.34 mi (5,913.28 km) |
| Thornton Heath to Lubbock (Texas) | 4,903.92 mi (7,892.09 km) |
| Thornton Heath to Lufkin (Texas) | 4,746.29 mi (7,638.42 km) |
| Thornton Heath to Luling (Louisiana) | 4,644.04 mi (7,473.87 km) |
| Thornton Heath to Lumberton (North Carolina) | 3,946.64 mi (6,351.50 km) |
| Thornton Heath to Lumberton (Texas) | 4,780.57 mi (7,693.58 km) |
| Thornton Heath to Lutz (Florida) | 4,406.28 mi (7,091.22 km) |
| Thornton Heath to Lynbrook (New York) | 3,453.08 mi (5,557.20 km) |
| Thornton Heath to Lynchburg (Virginia) | 3,824.37 mi (6,154.73 km) |
| Thornton Heath to Lynden (Washington) | 4,717.27 mi (7,591.71 km) |
| Thornton Heath to Lyndhurst (Ohio) | 3,729.92 mi (6,002.73 km) |
| Thornton Heath to Lyndon (Kentucky) | 4,041.53 mi (6,504.22 km) |
