Western Sydney International (Nancy-Bird Walton) Airport

Sydney is about to get its second major airport, and unlike the one hemmed in by the suburbs, this one never sleeps. Western Sydney International, named for aviation pioneer Nancy-Bird Walton, opens for passenger flights on 26 October 2026 at Badgerys Creek, roughly 50 kilometers west of the city center. It’s a greenfield build with a price tag of about AU$5.3 billion, and it lands without the overnight curfew that constrains Kingsford Smith.

Project Scope

The core of the work is a single 3.7-kilometer runway, a terminal sized for 10 million passengers a year from day one, and the road and utility spine to support them. The runway alone carries about 3,000 aeronautical ground lights. Bechtel led program delivery and brought the airside in roughly seven months ahead of schedule and on budget, with CPB Contractors completing the civil and pavement works. Multiplex built the terminal to a design developed with Cox Architecture, Zaha Hadid Architects and Woods Bagot, and engineered by Arup. The terminal has since been formally unveiled, with the site moving into commissioning ahead of opening.

Why It Matters

Kingsford Smith is full and curfewed, and western Sydney is where the region’s population is growing fastest. The new airport is the anchor of a much larger plan, a planned city called Bradfield and the surrounding “Aerotropolis” of logistics, advanced manufacturing and housing meant to grow up around 24-hour air freight. Built to scale toward tens of millions of passengers over the coming decades, it’s the kind of long-horizon infrastructure bet that reshapes a metro region. Exchange has followed similar aviation megaprojects, including O’Hare’s Concourse D expansion in Chicago.

Project Team & Details