| Pontneddfechan to Mendota Heights (Minnesota) | 3,876.72 mi (6,238.98 km) |
| Pontneddfechan to Menifee (California) | 5,301.77 mi (8,532.37 km) |
| Pontneddfechan to Menlo Park (California) | 5,247.78 mi (8,445.49 km) |
| Pontneddfechan to Menomonee Falls (Wisconsin) | 3,768.39 mi (6,064.64 km) |
| Pontneddfechan to Menomonie (Wisconsin) | 3,831.23 mi (6,165.78 km) |
| Pontneddfechan to Mentor (Ohio) | 3,568.79 mi (5,743.41 km) |
| Pontneddfechan to Mequon (Wisconsin) | 3,759.19 mi (6,049.83 km) |
| Pontneddfechan to Merced (California) | 5,204.61 mi (8,376.01 km) |
| Pontneddfechan to Mercedes (Texas) | 4,994.46 mi (8,037.81 km) |
| Pontneddfechan to Mercer Island (Washington) | 4,677.73 mi (7,528.08 km) |
| Pontneddfechan to Mercerville (New Jersey) | 3,363.05 mi (5,412.31 km) |
| Pontneddfechan to Meriden (Connecticut) | 3,229.62 mi (5,197.58 km) |
| Pontneddfechan to Meridian (Idaho) | 4,726.63 mi (7,606.77 km) |
| Pontneddfechan to Meridian (Mississippi) | 4,302.55 mi (6,924.28 km) |
| Pontneddfechan to Merriam (Kansas) | 4,213.05 mi (6,780.25 km) |
