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International Arrivals Facility

The Port of Seattle is building a new, expanded International Arrivals Facility (IAF) at Sea-Tac Airport to meet growing regional demand for international service, enhance the passenger experience, advance the Puget Sound region as a leading tourism and business gateway and serve the traveling public well into the future. The current 1970’s vintage facility in the South Satellite is servicing a dramatic increase in flights and the existing Federal Inspections area (commonly known as customs) is beyond its peak capacity. The new facility will also help achieve the Port’s Century Agenda goal to increase the number of international flights and destinations over the next 25 years.

New facility plan

Increased Capacity

  • Nearly double international capable gates (from 12 to 20)

  • Increase passenger capacity by more than double to 2,600 passengers per hour

  • More than double passport check positions and kiosks (from 30 to 80 kiosks)

  • Increase size and number of bag claim carousels from four to seven

  • Reduce minimum passenger connection time from 90 to 75 minutes

Planned Facility Improvements

  • The IAF will be a new multi-level, 450,000 square-foot facility located east of the current Concourse A

  • An iconic aerial walkway, which will span 900 feet across and 85 feet above the existing taxi lane, will connect arriving international passengers from the South Satellite across the top of Concourse A to the new IAF

Estimated Project Costs

  • The current budget for the IAF is $766 million. Funding for the project will come from a combination of airport generated revenues, passenger facility charges (PFC’s) and revenue bonds. As with virtually all airport projects, no tax-payer dollars will be used to fund the project 

Details About the New FacilityInternational Arrivals Footprint

  • The iconic aerial walkway will be prefabricated at the north end of the airport, then transported to the south end overnight for installation in order to reduce impacts to taxiway use.
  • A new security corridor along the face of the existing Concourse A will allow eight international wide-body aircraft gates to access directly into the IAF. These gates will also allow dual use for domestic flights into Concourse A.
  • As part of the Port of Seattle’s emphasis on environmental stewardship and sustainability, the project is designed to achieve LEED V4 (Leadership in Energy and Environmental Design, Version 4) Silver certification from the United States Green Building Council.
  • The baggage claim devices will nearly triple in size, from four devices with 668 lineal feet in the current space to seven devices and 1,806 linear feet!

Current Sea-Tac Airport Traffic Facts

For three years, Sea-Tac was among the fastest-growing large hub airports in North America. It was the 9th largest airport based on total passengers in 2017.

  • International passenger activity requiring customs clearance at Sea-Tac has more than doubled in the past 10 years, growing 117% from 2006 to 2016.
  • A consultant study estimates each new international route generates $89 million annual economic impact to the region.
  • Located exactly halfway between London and Tokyo, Sea-Tac Airport is the closest U.S. West Coast gateway to both Europe and Asia.
  • Over the past ten years, Sea-Tac has welcomed 16 new intercontinental services including new roustes to Beijing, Dubai, Frankfurt, Hong Kong, Reykjavik, Shanghai, and Shenzhen.

Project timeline

Construction begins/groundbreaking Q3 2017
Projected IAF opening Q4 2019


CONTRACTOR INFORMATION: Contractors can get more information on bid packages and awards

Conceptual drawings and video courtesy of Clark/SOM/Port of Seattle.


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