| Pontypridd to Marysville (California) | 5,148.83 mi (8,286.25 km) |
| Pontypridd to Marysville (Ohio) | 3,728.27 mi (6,000.08 km) |
| Pontypridd to Marysville (Washington) | 4,661.77 mi (7,502.40 km) |
| Pontypridd to Maryville (Missouri) | 4,169.69 mi (6,710.47 km) |
| Pontypridd to Maryville (Tennessee) | 3,960.82 mi (6,374.33 km) |
| Pontypridd to Mason (Ohio) | 3,805.57 mi (6,124.47 km) |
| Pontypridd to Mason City (Iowa) | 3,973.78 mi (6,395.19 km) |
| Pontypridd to Massapequa (New York) | 3,307.24 mi (5,322.49 km) |
| Pontypridd to Massapequa Park (New York) | 3,305.78 mi (5,320.13 km) |
| Pontypridd to Massillon (Ohio) | 3,630.02 mi (5,841.95 km) |
| Pontypridd to Mastic (New York) | 3,275.49 mi (5,271.40 km) |
| Pontypridd to Mastic Beach (New York) | 3,276.87 mi (5,273.61 km) |
| Pontypridd to Matteson (Illinois) | 3,842.62 mi (6,184.10 km) |
| Pontypridd to Matthews (North Carolina) | 3,855.99 mi (6,205.61 km) |
| Pontypridd to Mattoon (Illinois) | 3,960.74 mi (6,374.19 km) |
