| Duluth to Marysville (California) | 1,568.17 mi (2,523.73 km) |
| Duluth to Marysville (Ohio) | 630.34 mi (1,014.43 km) |
| Duluth to Marysville (Washington) | 1,397.04 mi (2,248.32 km) |
| Duluth to Maryville (Missouri) | 464.94 mi (748.25 km) |
| Duluth to Maryville (Tennessee) | 870.82 mi (1,401.46 km) |
| Duluth to Mason (Ohio) | 646.77 mi (1,040.87 km) |
| Duluth to Mason City (Iowa) | 255.89 mi (411.82 km) |
| Duluth to Massapequa (New York) | 1,019.97 mi (1,641.49 km) |
| Duluth to Massapequa Park (New York) | 1,020.42 mi (1,642.21 km) |
| Duluth to Massillon (Ohio) | 671.12 mi (1,080.06 km) |
| Duluth to Mastic (New York) | 1,043.22 mi (1,678.91 km) |
| Duluth to Mastic Beach (New York) | 1,045.21 mi (1,682.10 km) |
| Duluth to Matteson (Illinois) | 423.89 mi (682.18 km) |
| Duluth to Matthews (North Carolina) | 999.92 mi (1,609.22 km) |
| Duluth to Mattoon (Illinois) | 538.86 mi (867.21 km) |
