| McDonough to Maryland Heights (Missouri) | 507.44 mi (816.65 km) |
| McDonough to Marysville (California) | 2,106.23 mi (3,389.65 km) |
| McDonough to Marysville (Ohio) | 471.05 mi (758.08 km) |
| McDonough to Marysville (Washington) | 2,201.53 mi (3,543.01 km) |
| McDonough to Maryville (Missouri) | 759.52 mi (1,222.33 km) |
| McDonough to Maryville (Tennessee) | 159.70 mi (257.02 km) |
| McDonough to Mason (Ohio) | 408.94 mi (658.12 km) |
| McDonough to Mason City (Iowa) | 830.03 mi (1,335.81 km) |
| McDonough to Massapequa (New York) | 771.10 mi (1,240.97 km) |
| McDonough to Massapequa Park (New York) | 772.57 mi (1,243.32 km) |
| McDonough to Massillon (Ohio) | 527.57 mi (849.03 km) |
| McDonough to Mastic (New York) | 803.17 mi (1,292.58 km) |
| McDonough to Mastic Beach (New York) | 801.90 mi (1,290.53 km) |
| McDonough to Matteson (Illinois) | 591.26 mi (951.54 km) |
| McDonough to Matthews (North Carolina) | 228.12 mi (367.13 km) |
