A method of manufacture of a leadless integrated circuit packaging system includes: providing a substrate; patterning a die attach pad on the substrate; forming a tiered plated pad array around the die attach pad; mounting an integrated circuit die on the die attach pad; coupling an electrical interconnect between the integrated circuit die and the tiered plated pad array; forming a molded package body on the integrated circuit die, the electrical interconnects, and the tiered plated pad array; and exposing a contact pad layer by removing the substrate.