| Duffel to Monticello (Minnesota) | 4,194.44 mi (6,750.30 km) |
| Duffel to Montrose (Colorado) | 5,024.75 mi (8,086.56 km) |
| Duffel to Moody (Alabama) | 4,496.34 mi (7,236.16 km) |
| Duffel to Moore (Oklahoma) | 4,829.92 mi (7,773.01 km) |
| Duffel to Moorestown-Lenola (New Jersey) | 3,731.19 mi (6,004.77 km) |
| Duffel to Mooresville (North Carolina) | 4,171.49 mi (6,713.36 km) |
| Duffel to Moorhead (Minnesota) | 4,217.96 mi (6,788.15 km) |
| Duffel to Moorpark (California) | 5,610.96 mi (9,029.97 km) |
| Duffel to Moraga (California) | 5,495.78 mi (8,844.60 km) |
| Duffel to Moreno Valley (California) | 5,580.79 mi (8,981.42 km) |
| Duffel to Morgan City (Louisiana) | 4,881.27 mi (7,855.64 km) |
| Duffel to Morgan Hill (California) | 5,524.42 mi (8,890.69 km) |
| Duffel to Morganton (North Carolina) | 4,199.25 mi (6,758.05 km) |
| Duffel to Morgantown (West Virginia) | 3,945.43 mi (6,349.56 km) |
| Duffel to Morris (Illinois) | 4,190.35 mi (6,743.72 km) |
