| Isabela to Mauldin (South Carolina) | 1,464.49 mi (2,356.87 km) |
| Isabela to Maumee (Ohio) | 1,871.62 mi (3,012.08 km) |
| Isabela to Maumelle (Arkansas) | 1,921.94 mi (3,093.06 km) |
| Isabela to Mayagüez (Puerto Rico) | 22.04 mi (35.47 km) |
| Isabela to Mayfield Heights (Ohio) | 1,803.81 mi (2,902.95 km) |
| Isabela to Mays Chapel (Maryland) | 1,556.82 mi (2,505.46 km) |
| Isabela to Maywood (California) | 3,309.48 mi (5,326.10 km) |
| Isabela to Maywood (Illinois) | 2,026.83 mi (3,261.86 km) |
| Isabela to McAlester (Oklahoma) | 2,094.08 mi (3,370.10 km) |
| Isabela to McAllen (Texas) | 2,059.59 mi (3,314.59 km) |
| Isabela to McCalla (Alabama) | 1,604.62 mi (2,582.38 km) |
| Isabela to McComb (Mississippi) | 1,707.64 mi (2,748.18 km) |
| Isabela to McDonough (Georgia) | 1,478.18 mi (2,378.89 km) |
| Isabela to McFarland (California) | 3,380.68 mi (5,440.68 km) |
| Isabela to McHenry (Illinois) | 2,065.66 mi (3,324.36 km) |
