Terminals and Concourses
The Spokane International Airport Terminal Renovation and Expansion (SIA TREX) project is a transformative, 167,000-square-foot development focused on revitalizing and expanding Concourse C. Managed by Q&D Construction in joint venture with Garco Construction, this ambitious project will elevate both the functionality and appearance of the terminal while significantly enhancing the passenger experience.
The project is being executed in multiple phases and divided into two major sections—East and West Concourse C. Key components include terminal expansion, six new boarding bridges, increased ticketing capacity, new baggage make-up, and extensive modernization of existing facilities.
Phase One—focused on the west end of Concourse C—was completed in June 2024. The opening was celebrated in a ceremony attended by Senator Maria Cantwell, Spokane Mayor Lisa Brown, and other local leaders, project partners, and community members. Shortly after the unveiling, new gates began receiving flights, and upgraded ticketing counters went into operation—boosting both customer experience and operational efficiency across the airport.
As of Spring 2025, Phase Two is in full swing. Current progress includes:
- Renovation and demolition of existing gates and ticketing areas to make way for a fully modernized terminal
- Ongoing underground utility work for the eastern expansion, continuing throughout the summer
- Footings scheduled to be poured in late August to support new construction
- Gate C6 and nearby ticketing counters under renovation, concealed behind temporary barriers
- Construction of new men’s and women’s restrooms on the second level, on track for completion by fall
- Advancements in the first gate remodel and ticketing counter upgrades
- Steel framework construction kicking off for the eastern expansion
With strong momentum and a clear vision, the TREX project is making major strides toward delivering a next-generation terminal that will serve the Spokane region for decades to come.
The joint venture was selected in late 2024 for the next significant upgrade for the TREX program, the Central Hall project.