| Pontneddfechan to Marysville (California) | 5,133.89 mi (8,262.20 km) |
| Pontneddfechan to Marysville (Ohio) | 3,714.60 mi (5,978.06 km) |
| Pontneddfechan to Marysville (Washington) | 4,646.90 mi (7,478.46 km) |
| Pontneddfechan to Maryville (Missouri) | 4,155.37 mi (6,687.42 km) |
| Pontneddfechan to Maryville (Tennessee) | 3,947.55 mi (6,352.97 km) |
| Pontneddfechan to Mason (Ohio) | 3,791.91 mi (6,102.49 km) |
| Pontneddfechan to Mason City (Iowa) | 3,959.36 mi (6,371.98 km) |
| Pontneddfechan to Massapequa (New York) | 3,294.24 mi (5,301.56 km) |
| Pontneddfechan to Massapequa Park (New York) | 3,292.77 mi (5,299.20 km) |
| Pontneddfechan to Massillon (Ohio) | 3,616.41 mi (5,820.05 km) |
| Pontneddfechan to Mastic (New York) | 3,262.52 mi (5,250.51 km) |
| Pontneddfechan to Mastic Beach (New York) | 3,263.90 mi (5,252.74 km) |
| Pontneddfechan to Matteson (Illinois) | 3,828.57 mi (6,161.48 km) |
| Pontneddfechan to Matthews (North Carolina) | 3,843.06 mi (6,184.81 km) |
| Pontneddfechan to Mattoon (Illinois) | 3,946.82 mi (6,351.79 km) |
