| Pontypridd to Monticello (Minnesota) | 3,896.03 mi (6,270.06 km) |
| Pontypridd to Montrose (Colorado) | 4,736.55 mi (7,622.74 km) |
| Pontypridd to Moody (Alabama) | 4,166.81 mi (6,705.84 km) |
| Pontypridd to Moore (Oklahoma) | 4,516.98 mi (7,269.38 km) |
| Pontypridd to Moorestown-Lenola (New Jersey) | 3,399.02 mi (5,470.19 km) |
| Pontypridd to Mooresville (North Carolina) | 3,838.98 mi (6,178.24 km) |
| Pontypridd to Moorhead (Minnesota) | 3,928.49 mi (6,322.30 km) |
| Pontypridd to Moorpark (California) | 5,339.19 mi (8,592.59 km) |
| Pontypridd to Moraga (California) | 5,239.87 mi (8,432.76 km) |
| Pontypridd to Moreno Valley (California) | 5,304.16 mi (8,536.22 km) |
| Pontypridd to Morgan City (Louisiana) | 4,552.14 mi (7,325.95 km) |
| Pontypridd to Morgan Hill (California) | 5,265.71 mi (8,474.34 km) |
| Pontypridd to Morganton (North Carolina) | 3,867.68 mi (6,224.44 km) |
| Pontypridd to Morgantown (West Virginia) | 3,617.34 mi (5,821.54 km) |
| Pontypridd to Morris (Illinois) | 3,875.26 mi (6,236.63 km) |
