| Duluth to Lowell (Indiana) | 445.37 mi (716.76 km) |
| Duluth to Lowell (Massachusetts) | 1,057.92 mi (1,702.56 km) |
| Duluth to Lower Burrell (Pennsylvania) | 752.67 mi (1,211.31 km) |
| Duluth to Lowes Island (Virginia) | 916.83 mi (1,475.49 km) |
| Duluth to Lubbock (Texas) | 1,045.94 mi (1,683.28 km) |
| Duluth to Lufkin (Texas) | 1,076.59 mi (1,732.61 km) |
| Duluth to Luling (Louisiana) | 1,169.87 mi (1,882.72 km) |
| Duluth to Lumberton (North Carolina) | 1,081.58 mi (1,740.63 km) |
| Duluth to Lumberton (Texas) | 1,146.73 mi (1,845.48 km) |
| Duluth to Lutz (Florida) | 1,390.47 mi (2,237.74 km) |
| Duluth to Lynbrook (New York) | 1,011.14 mi (1,627.28 km) |
| Duluth to Lynchburg (Virginia) | 925.30 mi (1,489.12 km) |
| Duluth to Lynden (Washington) | 1,403.83 mi (2,259.24 km) |
| Duluth to Lyndhurst (Ohio) | 639.93 mi (1,029.87 km) |
| Duluth to Lyndon (Kentucky) | 675.50 mi (1,087.12 km) |
