| Festus to Mauldin (South Carolina) | 508.76 mi (818.77 km) |
| Festus to Maumee (Ohio) | 425.79 mi (685.24 km) |
| Festus to Maumelle (Arkansas) | 257.54 mi (414.47 km) |
| Festus to Mayagüez (Puerto Rico) | 1,968.75 mi (3,168.40 km) |
| Festus to Mayfield Heights (Ohio) | 526.43 mi (847.20 km) |
| Festus to Mays Chapel (Maryland) | 744.56 mi (1,198.25 km) |
| Festus to Maywood (California) | 1,571.83 mi (2,529.61 km) |
| Festus to Maywood (Illinois) | 286.97 mi (461.84 km) |
| Festus to McAlester (Oklahoma) | 374.54 mi (602.77 km) |
| Festus to McAllen (Texas) | 945.96 mi (1,522.38 km) |
| Festus to McCalla (Alabama) | 388.93 mi (625.92 km) |
| Festus to McComb (Mississippi) | 481.95 mi (775.63 km) |
| Festus to McDonough (Georgia) | 481.43 mi (774.79 km) |
| Festus to McFarland (California) | 1,595.19 mi (2,567.21 km) |
| Festus to McHenry (Illinois) | 305.67 mi (491.93 km) |
