| Killingworth to Mauldin (South Carolina) | 3,945.31 mi (6,349.36 km) |
| Killingworth to Maumee (Ohio) | 3,657.97 mi (5,886.93 km) |
| Killingworth to Maumelle (Arkansas) | 4,320.04 mi (6,952.44 km) |
| Killingworth to Mayagüez (Puerto Rico) | 4,231.89 mi (6,810.57 km) |
| Killingworth to Mayfield Heights (Ohio) | 3,578.80 mi (5,759.52 km) |
| Killingworth to Mays Chapel (Maryland) | 3,497.95 mi (5,629.41 km) |
| Killingworth to Maywood (California) | 5,238.15 mi (8,429.98 km) |
| Killingworth to Maywood (Illinois) | 3,794.81 mi (6,107.16 km) |
| Killingworth to McAlester (Oklahoma) | 4,438.57 mi (7,143.19 km) |
| Killingworth to McAllen (Texas) | 5,002.97 mi (8,051.51 km) |
| Killingworth to McCalla (Alabama) | 4,201.46 mi (6,761.60 km) |
| Killingworth to McComb (Mississippi) | 4,439.80 mi (7,145.17 km) |
| Killingworth to McDonough (Georgia) | 4,084.91 mi (6,574.03 km) |
| Killingworth to McFarland (California) | 5,170.45 mi (8,321.03 km) |
| Killingworth to McHenry (Illinois) | 3,788.25 mi (6,096.60 km) |
