| Philadelphia to Mattoon (Illinois) | 703.10 mi (1,131.53 km) |
| Philadelphia to Mauldin (South Carolina) | 533.73 mi (858.95 km) |
| Philadelphia to Maumee (Ohio) | 458.86 mi (738.46 km) |
| Philadelphia to Maumelle (Arkansas) | 1,010.02 mi (1,625.47 km) |
| Philadelphia to Mayagüez (Puerto Rico) | 1,580.39 mi (2,543.39 km) |
| Philadelphia to Mayfield Heights (Ohio) | 346.68 mi (557.93 km) |
| Philadelphia to Mays Chapel (Maryland) | 89.86 mi (144.62 km) |
| Philadelphia to Maywood (California) | 2,388.34 mi (3,843.66 km) |
| Philadelphia to Maywood (Illinois) | 675.17 mi (1,086.59 km) |
| Philadelphia to McAlester (Oklahoma) | 1,181.92 mi (1,902.12 km) |
| Philadelphia to McAllen (Texas) | 1,633.64 mi (2,629.09 km) |
| Philadelphia to McCalla (Alabama) | 804.73 mi (1,295.08 km) |
| Philadelphia to McComb (Mississippi) | 1,050.44 mi (1,690.52 km) |
| Philadelphia to McDonough (Georgia) | 674.07 mi (1,084.81 km) |
| Philadelphia to McFarland (California) | 2,400.55 mi (3,863.31 km) |
