| Duluth to Miami Lakes (Florida) | 1,580.29 mi (2,543.23 km) |
| Duluth to Miami Shores (Florida) | 1,586.45 mi (2,553.14 km) |
| Duluth to Miami Springs (Florida) | 1,587.00 mi (2,554.03 km) |
| Duluth to Miamisburg (Ohio) | 632.24 mi (1,017.49 km) |
| Duluth to Michigan City (Indiana) | 436.35 mi (702.23 km) |
| Duluth to Middle Island (New York) | 1,036.20 mi (1,667.60 km) |
| Duluth to Middle River (Maryland) | 942.31 mi (1,516.50 km) |
| Duluth to Middle Valley (Tennessee) | 877.88 mi (1,412.81 km) |
| Duluth to Middleburg (Florida) | 1,279.07 mi (2,058.46 km) |
| Duluth to Middleburg Heights (Ohio) | 633.32 mi (1,019.23 km) |
| Duluth to Middlesex (New Jersey) | 977.11 mi (1,572.50 km) |
| Duluth to Middleton (Wisconsin) | 284.31 mi (457.56 km) |
| Duluth to Middletown (Connecticut) | 1,027.77 mi (1,654.04 km) |
| Duluth to Middletown (Delaware) | 967.99 mi (1,557.83 km) |
| Duluth to Middletown (New York) | 950.19 mi (1,529.19 km) |
