| Llantwit Major to Lowell (Indiana) | 3,840.43 mi (6,180.58 km) |
| Llantwit Major to Lowell (Massachusetts) | 3,135.08 mi (5,045.43 km) |
| Llantwit Major to Lower Burrell (Pennsylvania) | 3,565.24 mi (5,737.70 km) |
| Llantwit Major to Lowes Island (Virginia) | 3,536.08 mi (5,690.77 km) |
| Llantwit Major to Lubbock (Texas) | 4,777.10 mi (7,688.00 km) |
| Llantwit Major to Lufkin (Texas) | 4,612.37 mi (7,422.89 km) |
| Llantwit Major to Luling (Louisiana) | 4,506.51 mi (7,252.53 km) |
| Llantwit Major to Lumberton (North Carolina) | 3,806.27 mi (6,125.60 km) |
| Llantwit Major to Lumberton (Texas) | 4,645.57 mi (7,476.32 km) |
| Llantwit Major to Lutz (Florida) | 4,264.18 mi (6,862.54 km) |
| Llantwit Major to Lynbrook (New York) | 3,314.30 mi (5,333.84 km) |
| Llantwit Major to Lynchburg (Virginia) | 3,685.82 mi (5,931.75 km) |
| Llantwit Major to Lynden (Washington) | 4,628.31 mi (7,448.55 km) |
| Llantwit Major to Lyndhurst (Ohio) | 3,595.95 mi (5,787.13 km) |
| Llantwit Major to Lyndon (Kentucky) | 3,907.13 mi (6,287.92 km) |
