Keep Our Promise to America's Children and Teachers Act or the Keep Our PACT Act This bill provides funding for disadvantaged students under the Elementary and Secondary Education Act of 1965 (ESEA) and students with disabilities under the Individuals with Disabilities Education Act (IDEA) for FY2020-FY2029. Specifically, the bill (1) provides funding for grant programs under the ESEA operated by local educational agencies dealing with the disadvantaged, and (2) reauthorizes the IDEA to assist states and outlying areas in providing special education and related services to children with disabilities.