Reconstruct terminal

The Port of Seattle received a $21.875 million Project Grant awarded on August 4, 2025, by the Federal Aviation Administration (FAA) under the Airport Improvement Program (CFDA 20.106), which encompasses Infrastructure Investment and Jobs Act (IIJA) Programs and COVID-19 Airports Programs. This grant funds Phase 3 construction activities for the reconstruction of Terminal Building Concourse S at Seattle-Tacoma International Airport, located in Burien, Washington. The project addresses critical infrastructure needs through structural, seismic, and building systems upgrades to modernize aging terminal facilities that have reached the end of their useful life. The grant is expected to be completed by August 3, 2029.

This grant represents a portion of the comprehensive terminal reconstruction project, with additional eligible costs funded through a separate Airport Improvement Program grant. The infrastructure improvements funded under this award align with the FAA's strategic objectives of safety, operational excellence, and long-term economic benefits through transportation infrastructure investment, while supporting the continued development of a nationwide system of public-use airports adequate to meet civil aeronautics needs.

Activities and expected outcomes

This project reconstructs the existing terminal building concourse s. This grant funds structural, seismic and building system upgrades to the terminal building that has reached the end of its useful life. This grant funds a portion of phase 3, which consists of construction to upgrade the existing structure. This grant is associated with an airport improvement program grant that funds the remaining eligible portion of the project. Intended beneficiary: this grant will provide federal funding for airports associated with seattle, washington.