| West Mifflin to McHenry (Illinois) | 455.75 mi (733.47 km) |
| West Mifflin to McKeesport (Pennsylvania) | 3.52 mi (5.66 km) |
| West Mifflin to McKinleyville (California) | 2,290.98 mi (3,686.98 km) |
| West Mifflin to McKinney (Texas) | 1,048.57 mi (1,687.51 km) |
| West Mifflin to McLean (Virginia) | 174.29 mi (280.49 km) |
| West Mifflin to McMinnville (Oregon) | 2,193.55 mi (3,530.18 km) |
| West Mifflin to McMinnville (Tennessee) | 454.11 mi (730.81 km) |
| West Mifflin to McNair (Virginia) | 164.53 mi (264.79 km) |
| West Mifflin to McPherson (Kansas) | 956.56 mi (1,539.43 km) |
| West Mifflin to Mead Valley (California) | 2,092.39 mi (3,367.37 km) |
| West Mifflin to Meadow Woods (Florida) | 832.33 mi (1,339.51 km) |
| West Mifflin to Meadowbrook (Virginia) | 240.91 mi (387.71 km) |
| West Mifflin to Meadville (Pennsylvania) | 89.97 mi (144.79 km) |
| West Mifflin to Mebane (North Carolina) | 297.22 mi (478.33 km) |
| West Mifflin to Mechanicsville (Virginia) | 233.20 mi (375.31 km) |
