| Fort Thomas to Mauldin (South Carolina) | 319.77 mi (514.61 km) |
| Fort Thomas to Maumee (Ohio) | 176.95 mi (284.77 km) |
| Fort Thomas to Maumelle (Arkansas) | 526.80 mi (847.80 km) |
| Fort Thomas to Mayagüez (Puerto Rico) | 1,777.10 mi (2,859.97 km) |
| Fort Thomas to Mayfield Heights (Ohio) | 230.89 mi (371.58 km) |
| Fort Thomas to Mays Chapel (Maryland) | 417.90 mi (672.54 km) |
| Fort Thomas to Maywood (California) | 1,894.41 mi (3,048.76 km) |
| Fort Thomas to Maywood (Illinois) | 263.02 mi (423.29 km) |
| Fort Thomas to McAlester (Oklahoma) | 686.82 mi (1,105.34 km) |
| Fort Thomas to McAllen (Texas) | 1,194.12 mi (1,921.75 km) |
| Fort Thomas to McCalla (Alabama) | 424.25 mi (682.77 km) |
| Fort Thomas to McComb (Mississippi) | 638.95 mi (1,028.29 km) |
| Fort Thomas to McDonough (Georgia) | 390.07 mi (627.76 km) |
| Fort Thomas to McFarland (California) | 1,912.75 mi (3,078.28 km) |
| Fort Thomas to McHenry (Illinois) | 301.87 mi (485.82 km) |
