Reconstruct terminal

The Port of Seattle received a $39.5 million project grant awarded on August 4, 2025, under the Federal Aviation Administration's Airport Improvement Program, Infrastructure Investment and Jobs Act Programs, and COVID-19 Airports Programs (CFDA 20.106). This grant funds Phase 2 (design and pre-construction activities) for the reconstruction of 86,000 square feet of the existing Terminal Concourse S building at Seattle-Tacoma International Airport, located in Burien, Washington. The project addresses critical structural, seismic, and building system upgrades that have reached the end of their useful lives, with an expected completion date of August 3, 2029.

The grant provides federal funding to support the modernization of aging airport infrastructure and will benefit airports associated with the Seattle metropolitan area. As a Phase 2 award, the funding specifically supports design work and pre-construction planning activities necessary to prepare for the subsequent construction phase of the terminal reconstruction project.

Activities and expected outcomes

This project reconstructs 86,000 square feet of the existing terminal concourse s building. This grant funds structural, seismic and building system upgrades that have reached the end of their useful lives. This grant funds phase 2, which consists of design and pre-construction. Intended beneficiary: this grant will provide federal funding for airports associated with seattle, washington.