Available 
SEATAC, King County, Wash., Nov. 13, 2026 — A multi-vehicle crash on northbound Interstate 5 near SeaTac killed at least one person on Thursday night, November 12, according to the Washington State Patrol.
The crash was first reported near S 200th Street at around 9:30 p.m., according to the Washington State Department of Transportation. Lanes were initially reduced, but by 11 p.m. all northbound lanes were blocked, and drivers were directed to exit at State Route 516 toward Kent and Des Moines.
Northbound I-5 stayed closed for nearly seven hours, reopening around 4:30 a.m. Friday. Traffic backed up more than a mile at one point during the closure.
One person has been arrested on a reckless driving charge, the Washington State Patrol said.
The investigation into the crash remains ongoing. Our sympathies are with the family of the person who lost their life.
Local Crash Information for SeaTac, WA
The fatal crash was reported on I-5 in SeaTac. For more crash news from the area, see our latest King County crash news.
Frequently Asked Questions
Why do chain-reaction, multi-vehicle crashes happen?
They usually start when one vehicle slows suddenly or collides, and following traffic can't stop in time, especially in the dark or in heavy traffic flow.
What should drivers do if they come upon a crash scene on the highway?
Slow down well before reaching the scene, move over if possible, and watch for responders, flares, or debris in the roadway.
What should I do if I'm stopped in traffic near a crash?
Stay in your vehicle with hazard lights on unless directed otherwise, keep a safe following distance from the car ahead, and avoid getting out near active lanes.
Does nighttime or low visibility make multi-car crashes more likely?
Reduced visibility at night can make it harder for drivers to react to sudden slowdowns or stopped vehicles ahead, raising the chance of a pile-up.
