| National City to Maryland Heights (Missouri) | 1,545.24 mi (2,486.82 km) |
| National City to Marysville (California) | 513.49 mi (826.38 km) |
| National City to Marysville (Ohio) | 1,933.73 mi (3,112.03 km) |
| National City to Marysville (Washington) | 1,097.25 mi (1,765.85 km) |
| National City to Maryville (Missouri) | 1,338.86 mi (2,154.68 km) |
| National City to Maryville (Tennessee) | 1,895.43 mi (3,050.40 km) |
| National City to Mason (Ohio) | 1,879.18 mi (3,024.25 km) |
| National City to Mason City (Iowa) | 1,483.00 mi (2,386.65 km) |
| National City to Massapequa (New York) | 2,454.12 mi (3,949.52 km) |
| National City to Massapequa Park (New York) | 2,455.20 mi (3,951.26 km) |
| National City to Massillon (Ohio) | 2,032.90 mi (3,271.64 km) |
| National City to Mastic (New York) | 2,486.49 mi (4,001.61 km) |
| National City to Mastic Beach (New York) | 2,487.14 mi (4,002.66 km) |
| National City to Matteson (Illinois) | 1,719.10 mi (2,766.63 km) |
| National City to Matthews (North Carolina) | 2,082.32 mi (3,351.17 km) |
