| Pontypridd to Morristown (New Jersey) | 3,343.21 mi (5,380.38 km) |
| Pontypridd to Morristown (Tennessee) | 3,911.51 mi (6,294.97 km) |
| Pontypridd to Morrisville (North Carolina) | 3,744.73 mi (6,026.55 km) |
| Pontypridd to Morro Bay (California) | 5,341.44 mi (8,596.22 km) |
| Pontypridd to Morton (Illinois) | 3,950.64 mi (6,357.93 km) |
| Pontypridd to Morton Grove (Illinois) | 3,819.92 mi (6,147.58 km) |
| Pontypridd to Moscow (Idaho) | 4,590.04 mi (7,386.96 km) |
| Pontypridd to Moses Lake (Washington) | 4,634.32 mi (7,458.21 km) |
| Pontypridd to Moss Bluff (Louisiana) | 4,603.40 mi (7,408.46 km) |
| Pontypridd to Moss Point (Mississippi) | 4,406.81 mi (7,092.08 km) |
| Pontypridd to Moultrie (Georgia) | 4,173.50 mi (6,716.60 km) |
| Pontypridd to Mounds View (Minnesota) | 3,883.34 mi (6,249.63 km) |
| Pontypridd to Mount Airy (North Carolina) | 3,787.23 mi (6,094.95 km) |
| Pontypridd to Mount Clemens (Michigan) | 3,603.89 mi (5,799.90 km) |
| Pontypridd to Mount Dora (Florida) | 4,199.52 mi (6,758.47 km) |
