Concourse C Expansion Project Concluded at Spokane International Airport (SIA)

Spokane International Airport (GEG) has completed the Concourse C Expansion Project. Encompassing a 140,000 square foot addition, along with extensive renovation, to the Airport’s existing terminal building, the project represents the first fully completed component of the multi-phase Terminal Renovation and Expansion (TREX) Program. This is a monumental step forward towards the organization’s long-term vision to enhance the air travel experience for Inland Northwest passengers.

Flights began departing from the newly reconstructed and modernized gates C1, C2, and C3 in June 2026. Designed with travelers in mind, the space features new passenger boarding bridges, along with many of the enhanced amenities introduced to travelers during the project’s first phase, the Concourse C West Terminal Expansion, including:
• Expanded accessibility for passengers with disabilities. Specific amenities include assistive listening technology, multi-use information displays and companion care rooms with changing stations.
• Regionally sourced fixtures and finishes, such as basalt tiles, mother-of-pearl terrazzo floors, and custom-designed mosaics of local landmarks, to inspire a unique sense of place for passengers.
• Electrochromic smart windows that leverage green technology and software to manage the daylight, glare and energy use in the terminal – and maximize passenger comfort – throughout the day and night.
• Expertly designed restrooms, featuring contemporary vanities, larger stalls and outward-swinging doors to increase functionality and accessibility.
Passengers traveling through the updated concourse will also have several new dining options available to them as part of the Airport’s revamped, regionally-focused concessions program.

The new terminal was designed by Minneapolis-based architecture firm Alliiance Co. and constructed through a joint venture between renowned airport construction firm QD Construction and Spokane-based Garco Construction and financed through a variety of sources including nearly $50 million in grants through the Bipartisan Infrastructure Law.

Teams have already begun relocating existing infrastructure along the Airport’s front curb to enable the next phase of TREX: creation of a 255,000-square-foot Central Hall facility to consolidate the airport’s two siloed terminals. Subject to future funding, the project is expected to break ground in early 2027. To learn more about the Airport’s continued growth and modernization, visit: https://gegtrex.com/.