Spokane International Airport TREX Program

The first phase of the Spokane International Airport Terminal Renovation and Expansion (TREX) Program is a six-gate, $145 million expansion. The first three gates opened in June 2024, with the construction of a three-gate replacement for Alaska Airlines’ ground boarding gates scheduled for completion in June 2026. Design is underway for the heart of the overall project—a new Central Hall that will include a centralized baggage claim area and a consolidated security checkpoint. Concourse connectors will link the Central Hall to all three of the airport’s concourses. This phase also includes curbside canopy improvements and a more efficient roadway configuration—elevating the passenger experience from drop-off to the gate and back to baggage claim. The project is pursuing LEED certification.