| Rhyl to Monticello (Minnesota) | 3,828.44 mi (6,161.27 km) |
| Rhyl to Montrose (Colorado) | 4,663.42 mi (7,505.05 km) |
| Rhyl to Moody (Alabama) | 4,125.94 mi (6,640.05 km) |
| Rhyl to Moore (Oklahoma) | 4,459.57 mi (7,176.98 km) |
| Rhyl to Moorestown-Lenola (New Jersey) | 3,362.05 mi (5,410.70 km) |
| Rhyl to Mooresville (North Carolina) | 3,802.45 mi (6,119.45 km) |
| Rhyl to Moorhead (Minnesota) | 3,855.78 mi (6,205.27 km) |
| Rhyl to Moorpark (California) | 5,258.46 mi (8,462.68 km) |
| Rhyl to Moraga (California) | 5,152.84 mi (8,292.70 km) |
| Rhyl to Moreno Valley (California) | 5,225.57 mi (8,409.74 km) |
| Rhyl to Morgan City (Louisiana) | 4,510.70 mi (7,259.27 km) |
| Rhyl to Morgan Hill (California) | 5,179.72 mi (8,335.95 km) |
| Rhyl to Morganton (North Carolina) | 3,829.71 mi (6,163.32 km) |
| Rhyl to Morgantown (West Virginia) | 3,574.69 mi (5,752.91 km) |
| Rhyl to Morris (Illinois) | 3,819.52 mi (6,146.92 km) |
