| Duffel to McKeesport (Pennsylvania) | 3,909.05 mi (6,291.00 km) |
| Duffel to McKinleyville (California) | 5,364.10 mi (8,632.69 km) |
| Duffel to McKinney (Texas) | 4,911.17 mi (7,903.77 km) |
| Duffel to McLean (Virginia) | 3,867.37 mi (6,223.94 km) |
| Duffel to McMinnville (Oregon) | 5,087.78 mi (8,187.99 km) |
| Duffel to McMinnville (Tennessee) | 4,364.67 mi (7,024.25 km) |
| Duffel to McNair (Virginia) | 3,875.77 mi (6,237.45 km) |
| Duffel to McPherson (Kansas) | 4,678.50 mi (7,529.31 km) |
| Duffel to Mead Valley (California) | 5,588.59 mi (8,993.97 km) |
| Duffel to Meadow Woods (Florida) | 4,547.53 mi (7,318.55 km) |
| Duffel to Meadowbrook (Virginia) | 3,948.45 mi (6,354.41 km) |
| Duffel to Meadville (Pennsylvania) | 3,861.44 mi (6,214.39 km) |
| Duffel to Mebane (North Carolina) | 4,084.67 mi (6,573.64 km) |
| Duffel to Mechanicsville (Virginia) | 3,934.56 mi (6,332.06 km) |
| Duffel to Medford (Massachusetts) | 3,468.60 mi (5,582.17 km) |
