| Festus to McKeesport (Pennsylvania) | 583.39 mi (938.87 km) |
| Festus to McKinleyville (California) | 1,791.98 mi (2,883.91 km) |
| Festus to McKinney (Texas) | 493.14 mi (793.64 km) |
| Festus to McLean (Virginia) | 714.91 mi (1,150.53 km) |
| Festus to McMinnville (Oregon) | 1,744.99 mi (2,808.30 km) |
| Festus to McMinnville (Tennessee) | 309.68 mi (498.38 km) |
| Festus to McNair (Virginia) | 703.24 mi (1,131.75 km) |
| Festus to McPherson (Kansas) | 393.22 mi (632.83 km) |
| Festus to Mead Valley (California) | 1,526.38 mi (2,456.47 km) |
| Festus to Meadow Woods (Florida) | 857.54 mi (1,380.07 km) |
| Festus to Meadowbrook (Virginia) | 707.50 mi (1,138.62 km) |
| Festus to Meadville (Pennsylvania) | 592.58 mi (953.66 km) |
| Festus to Mebane (North Carolina) | 630.30 mi (1,014.38 km) |
| Festus to Mechanicsville (Virginia) | 712.06 mi (1,145.94 km) |
| Festus to Medford (Massachusetts) | 1,054.78 mi (1,697.51 km) |
