| Cwmbran to Monticello (Minnesota) | 3,905.76 mi (6,285.71 km) |
| Cwmbran to Montrose (Colorado) | 4,745.70 mi (7,637.47 km) |
| Cwmbran to Moody (Alabama) | 4,178.83 mi (6,725.18 km) |
| Cwmbran to Moore (Oklahoma) | 4,527.72 mi (7,286.67 km) |
| Cwmbran to Moorestown-Lenola (New Jersey) | 3,411.26 mi (5,489.90 km) |
| Cwmbran to Mooresville (North Carolina) | 3,851.26 mi (6,198.01 km) |
| Cwmbran to Moorhead (Minnesota) | 3,937.66 mi (6,337.05 km) |
| Cwmbran to Moorpark (California) | 5,347.42 mi (8,605.84 km) |
| Cwmbran to Moraga (California) | 5,247.21 mi (8,444.57 km) |
| Cwmbran to Moreno Valley (California) | 5,312.67 mi (8,549.91 km) |
| Cwmbran to Morgan City (Louisiana) | 4,564.13 mi (7,345.25 km) |
| Cwmbran to Morgan Hill (California) | 5,273.20 mi (8,486.40 km) |
| Cwmbran to Morganton (North Carolina) | 3,879.88 mi (6,244.07 km) |
| Cwmbran to Morgantown (West Virginia) | 3,629.21 mi (5,840.65 km) |
| Cwmbran to Morris (Illinois) | 3,886.12 mi (6,254.11 km) |
