| Fallbrook to Mauldin (South Carolina) | 1,990.94 mi (3,204.11 km) |
| Fallbrook to Maumee (Ohio) | 1,912.04 mi (3,077.13 km) |
| Fallbrook to Maumelle (Arkansas) | 1,420.26 mi (2,285.69 km) |
| Fallbrook to Mayagüez (Puerto Rico) | 3,253.62 mi (5,236.20 km) |
| Fallbrook to Mayfield Heights (Ohio) | 2,025.52 mi (3,259.75 km) |
| Fallbrook to Mays Chapel (Maryland) | 2,275.39 mi (3,661.89 km) |
| Fallbrook to Maywood (California) | 69.92 mi (112.53 km) |
| Fallbrook to Maywood (Illinois) | 1,701.88 mi (2,738.91 km) |
| Fallbrook to McAlester (Oklahoma) | 1,229.03 mi (1,977.93 km) |
| Fallbrook to McAllen (Texas) | 1,237.87 mi (1,992.16 km) |
| Fallbrook to McCalla (Alabama) | 1,736.85 mi (2,795.18 km) |
| Fallbrook to McComb (Mississippi) | 1,564.98 mi (2,518.59 km) |
| Fallbrook to McDonough (Georgia) | 1,899.57 mi (3,057.06 km) |
| Fallbrook to McFarland (California) | 196.48 mi (316.21 km) |
| Fallbrook to McHenry (Illinois) | 1,685.50 mi (2,712.54 km) |
