| Morpeth to Mauldin (South Carolina) | 3,937.72 mi (6,337.15 km) |
| Morpeth to Maumee (Ohio) | 3,649.54 mi (5,873.36 km) |
| Morpeth to Maumelle (Arkansas) | 4,311.55 mi (6,938.76 km) |
| Morpeth to Mayagüez (Puerto Rico) | 4,228.16 mi (6,804.57 km) |
| Morpeth to Mayfield Heights (Ohio) | 3,570.55 mi (5,746.24 km) |
| Morpeth to Mays Chapel (Maryland) | 3,490.37 mi (5,617.21 km) |
| Morpeth to Maywood (California) | 5,228.03 mi (8,413.69 km) |
| Morpeth to Maywood (Illinois) | 3,786.04 mi (6,093.05 km) |
| Morpeth to McAlester (Oklahoma) | 4,429.80 mi (7,129.07 km) |
| Morpeth to McAllen (Texas) | 4,994.66 mi (8,038.12 km) |
| Morpeth to McCalla (Alabama) | 4,193.57 mi (6,748.91 km) |
| Morpeth to McComb (Mississippi) | 4,431.78 mi (7,132.27 km) |
| Morpeth to McDonough (Georgia) | 4,077.29 mi (6,561.76 km) |
| Morpeth to McFarland (California) | 5,160.22 mi (8,304.57 km) |
| Morpeth to McHenry (Illinois) | 3,779.41 mi (6,082.37 km) |
