| Holyhead to Lowell (Indiana) | 3,742.11 mi (6,022.35 km) |
| Holyhead to Lowell (Massachusetts) | 3,052.82 mi (4,913.03 km) |
| Holyhead to Lower Burrell (Pennsylvania) | 3,476.92 mi (5,595.56 km) |
| Holyhead to Lowes Island (Virginia) | 3,453.63 mi (5,558.09 km) |
| Holyhead to Lubbock (Texas) | 4,673.26 mi (7,520.88 km) |
| Holyhead to Lufkin (Texas) | 4,519.91 mi (7,274.10 km) |
| Holyhead to Luling (Louisiana) | 4,421.87 mi (7,116.31 km) |
| Holyhead to Lumberton (North Carolina) | 3,729.86 mi (6,002.63 km) |
| Holyhead to Lumberton (Texas) | 4,555.23 mi (7,330.94 km) |
| Holyhead to Lutz (Florida) | 4,193.89 mi (6,749.42 km) |
| Holyhead to Lynbrook (New York) | 3,233.36 mi (5,203.60 km) |
| Holyhead to Lynchburg (Virginia) | 3,604.08 mi (5,800.20 km) |
| Holyhead to Lynden (Washington) | 4,495.57 mi (7,234.92 km) |
| Holyhead to Lyndhurst (Ohio) | 3,503.83 mi (5,638.87 km) |
| Holyhead to Lyndon (Kentucky) | 3,815.77 mi (6,140.89 km) |
