| Duluth to Mitchell (South Dakota) | 355.51 mi (572.13 km) |
| Duluth to Mitchellville (Maryland) | 943.85 mi (1,518.99 km) |
| Duluth to Moberly (Missouri) | 508.59 mi (818.49 km) |
| Duluth to Mobile (Alabama) | 1,132.76 mi (1,823.00 km) |
| Duluth to Modesto (California) | 1,594.90 mi (2,566.75 km) |
| Duluth to Mokena (Illinois) | 419.19 mi (674.61 km) |
| Duluth to Moline (Illinois) | 374.73 mi (603.08 km) |
| Duluth to Moncks Corner (South Carolina) | 1,135.36 mi (1,827.19 km) |
| Duluth to Monfort Heights (Ohio) | 647.57 mi (1,042.16 km) |
| Duluth to Monmouth (Oregon) | 1,493.27 mi (2,403.19 km) |
| Duluth to Monroe (Georgia) | 999.08 mi (1,607.86 km) |
| Duluth to Monroe (Louisiana) | 985.08 mi (1,585.33 km) |
| Duluth to Monroe (Michigan) | 547.05 mi (880.39 km) |
| Duluth to Monroe (North Carolina) | 1,011.11 mi (1,627.23 km) |
| Duluth to Monroe (Ohio) | 639.76 mi (1,029.60 km) |
