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Traffic and Roadway Construction Alerts

Traffic Impacted Around the Airport

Below are known impacts to traffic that will affect travel around Port-owned Properties that may impact travelers due to congestion or roadway construction. All information is provided by Washington State Department of Transportation (WSDOT).

AVOID TRAFFIC - Take other modes of public transportation if possible such as Sound Transit's Link Light Rail. Read more traveler updates and tips on traveling to the airport.

Sound Transi Rider Alert ButtonSound Transit Service Alerts - Sound Transit offers a subscription for email and text for alerts. See the Service Alerts to see if the Sounder, Link Light Rail or ST Express bus routes are affected.

Know before you go - Travelers can get real-time traffic information on their phone with the WSDOT mobile app, tracking the WSDOT Traffic Twitter feed and advanced information from the King County construction page. See other construction updates from the city of SeaTac.

Navigation Tips for the New SR 99 Tunnel

In response to the Alaskan Way Viaduct Closure Project (Realign 99) effective January 11, 2019 the Washington State Department of Transportation produced four new videos to help drivers navigate the changes the new tunnel brings. The videos show:

Helpful Links from WSDOT

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