| Willoughby to Lovington (New Mexico) | 1,342.38 mi (2,160.35 km) |
| Willoughby to Lowell (Indiana) | 312.11 mi (502.29 km) |
| Willoughby to Lowell (Massachusetts) | 520.97 mi (838.42 km) |
| Willoughby to Lower Burrell (Pennsylvania) | 114.82 mi (184.78 km) |
| Willoughby to Lowes Island (Virginia) | 278.98 mi (448.97 km) |
| Willoughby to Lubbock (Texas) | 1,248.00 mi (2,008.47 km) |
| Willoughby to Lufkin (Texas) | 1,025.44 mi (1,650.29 km) |
| Willoughby to Luling (Louisiana) | 952.62 mi (1,533.10 km) |
| Willoughby to Lumberton (North Carolina) | 501.71 mi (807.42 km) |
| Willoughby to Lumberton (Texas) | 1,061.43 mi (1,708.21 km) |
| Willoughby to Lutz (Florida) | 935.03 mi (1,504.78 km) |
| Willoughby to Lynbrook (New York) | 407.97 mi (656.57 km) |
| Willoughby to Lynchburg (Virginia) | 316.22 mi (508.91 km) |
| Willoughby to Lynden (Washington) | 2,031.04 mi (3,268.64 km) |
| Willoughby to Lyndhurst (Ohio) | 9.89 mi (15.92 km) |
