Dubbed NorthSTAR (North Sea-Tac Airport Renovation), the 40-year-old facility is being modernized to better serve passengers and respond to the continuing growth at Sea-Tac. Groundbreaking of the project is scheduled for the first quarter of 2017 with phase one to be complete in 2019. The full facility upgrade will open in 2021.
The $636 million project will include adding eight new gates with a 240-foot extension of the building to the west, add an upper level mezzanine, and introduce a rooftop Alaska Airlines lounge with views of the Olympic Mountains.
“This project – which will include new gates, increased dining and retail options, and more robust Wi-Fi and connectivity – is critical for meeting the region’s needs at Sea-Tac Airport for the next 25 years,” said Port of Seattle Commission President John Creighton.
Operations at the North Satellite will continue throughout the construction process. The first phase will build out the extension to the west of the current building. Once that is complete in 2019, the second phase will renovate and upgrade the eastern portion of the building.
Sea-Tac Passenger Growth
For the past two years, Sea-Tac is the fastest growing large hub airport in the U.S. and is the 13th largest domestic airport based on total passengers. Through July of 2016, traffic is up nearly 10%, after increases of nearly 13% in 2015 and 7.7% in 2014.
July 2016 was Sea-Tac’s busiest July ever – almost 4.7 million passengers – nearly 300,000 more than 2015 (6.5% increase) July domestic passenger traffic was up 6% vs. 2015 and international traffic was up 12%.