The Air Terminal is a two-story, eight-bay wide airport terminal combining Spanish Colonial Revival styling with Zig-zag (Art Deco) Moderne influences. The Spanish Colonial Revival tradition is visible in the overall structural massing, red clay (Mission) tile roof treatment, stucco siding, and large archways. Zig-zag, Art Deco features are incorporated into the air traffic control tower at the northwest corner of the building and include verticality, chevron and sunburst detailing on the center panels, and stylized winged angel reliefs on the four upper corners. The building has a structural steel skeleton and masonry infill exterior walls finished with plaster and cast stone. Original interior features still intact and preserved include the elaborately ornamented staircase and railing from the first-floor waiting room to the restaurant; the decorative, stylized plaster ceilings in the first-floor coffee shop and in the second floor restaurant; the wall detailing and plaster castings on the balcony at the north end of the waiting room; and the arched openings and decorative columns of the inner arcade area along the west elevation of the waiting room. The basic floor plan is still intact, however, the large two-story waiting room has been altered by the insertion of partition walls and a temporary second floor mezzanine.