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Construction Impacts

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Updated July 16, 2025

Know before you go. Stay up to date on airport construction and how it might impact your journey. 

Current construction impacts

PROJECT IMPACTED AREA IMPACT DESCRIPTION
Roadway Improvements

Departures Drive lanes

view Quick Tip video

July 24 8 p.m. - July 25 4 a.m.

Overnight work with single lanes closures and traffic impacts while the two Departures Drive lanes getting shifted slightly to the west. 

SEA Gateway Checkpoint 6 TSA Security Checkpoint 6 on the far north end is closed until later in 2025

*all dates and times are subject to change

 

Resources

  • Check Upgrade SEA to learn more about current and future airport improvements
  • Get step-by-step directions throughout the airport and see available routes, detours and more on our interactive map

 

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