Creates a new federal grant program to pay for transportation projects that connect to public airports and that improve access or reduce congestion. The program defines eligible applicants and projects, sets rules for how grant money is split among airports of different sizes, establishes cost‑share requirements, and authorizes funding from the Highway Trust Fund for fiscal years 2027 through 2031.

The program is designed to support roads, transit, and other access improvements serving airports. Grants will be distributed under an allocation formula by airport size and will require recipients to contribute a matching share as specified in the law. The program is a multi‑year, federally authorized funding stream rather than an emergency appropriation or tax change.