| Philadelphia to McHenry (Illinois) | 702.30 mi (1,130.24 km) |
| Philadelphia to McKeesport (Pennsylvania) | 249.70 mi (401.85 km) |
| Philadelphia to McKinleyville (California) | 2,539.18 mi (4,086.41 km) |
| Philadelphia to McKinney (Texas) | 1,279.51 mi (2,059.17 km) |
| Philadelphia to McLean (Virginia) | 132.21 mi (212.77 km) |
| Philadelphia to McMinnville (Oregon) | 2,433.55 mi (3,916.42 km) |
| Philadelphia to McMinnville (Tennessee) | 652.53 mi (1,050.14 km) |
| Philadelphia to McNair (Virginia) | 141.70 mi (228.04 km) |
| Philadelphia to McPherson (Kansas) | 1,208.38 mi (1,944.70 km) |
| Philadelphia to Mead Valley (California) | 2,344.84 mi (3,773.66 km) |
| Philadelphia to Meadow Woods (Florida) | 878.40 mi (1,413.65 km) |
| Philadelphia to Meadowbrook (Virginia) | 218.23 mi (351.20 km) |
| Philadelphia to Meadville (Pennsylvania) | 285.47 mi (459.41 km) |
| Philadelphia to Mebane (North Carolina) | 352.31 mi (566.99 km) |
| Philadelphia to Mechanicsville (Virginia) | 203.42 mi (327.36 km) |
