Local Government

Sound Transit Announces Fall 2026 Service Changes

Thursday, August 20, 2026

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Sound Transit is implementing service changes to its ST Express bus routes effective August 29-31, 2026. The changes include eliminating routes 515, 550, 554, 580, and 586, shortening routes 522 and 574, and adding new overnight service on routes 547 and 597. New stops will be added on W Casino Rd for route 513, and route 556 will see increased frequency and new stops in Issaquah.

The changes aim to improve service performance, respond to ridership trends, and optimize resource allocation, according to Sound Transit. Routes 532, 542, 545, and 566 will remain unchanged, as will Link light rail and Sounder commuter rail lines. Riders can access the full list of affected routes on Sound Transit's website or contact Passenger Care for trip planning assistance.

📄 Source: Sound Transit — News — https://www.soundtransit.org/get-to-know-us/news-events/news-releases/sound-transit-fall-2026-service-change

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Sound Transit is implementing service changes to its ST Express bus routes effective August 29-31, 2026“This month, Sound Transit is introducing several changes to our ST Express routes that will take effect from Aug. 29-31.”
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The changes include eliminating routes 515, 550, 554, 580, and 586“515 – Eliminate route. 550 – Eliminate route. 554 – Eliminate route. 580 – Eliminate route. 586 – Eliminate route.”
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The changes include shortening routes 522 and 574“522 – Shorten route to Shoreline South, increase headway to every 15 minutes. 574 – Shorten route to Federal Way, increase headway to every 15 minutes, replace Lakewood Transit Center stop with new Lakewood Station stop, runtime changes.”
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The changes include adding new overnight service on routes 547 and 597“547 – New Night Bus overnight service between Redmond and Downtown Seattle. 597 – New Night Bus overnight service between Lakewood and Downtown Seattle.”
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New stops will be added on W Casino Rd for route 513“513 – Add bi-directional service; adjust trip start times; change bus bay assignment at Seaway Transit Center; revise pathway to serve W Casino Rd & Airport Rd; add stops on W Casino Rd; convert Casino Rd & Evergreen way stop to a timepoint.”
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Route 556 will see increased frequency and new stops in Issaquah“556 – Truncate route, increase frequency, add stops in Issaquah.”
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The changes aim to improve service performance“Sound Transit regularly adjusts bus and rail service to improve performance, respond to ridership trends, and make the most of the agency’s resources.”
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The changes aim to respond to ridership trends“Sound Transit regularly adjusts bus and rail service to improve performance, respond to ridership trends, and make the most of the agency’s resources.”
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The changes aim to optimize resource allocationNo usable supporting receipt — unverified.
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According to Sound Transit, the changes aim to improve service performance, respond to ridership trends, and optimize resource allocation“Sound Transit regularly adjusts bus and rail service to improve performance, respond to ridership trends, and make the most of the agency’s resources.”
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Routes 532, 542, 545, and 566 will remain unchanged“No changes planned for ST Express Routes 532, 542, 545, & 566.”
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Link light rail and Sounder commuter rail lines will remain unchanged“No changes planned for Link 1 Line, Link 2 Line, Sounder N Line, Sounder S Line, or T Line.”
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Riders can access the full list of affected routes on Sound Transit's website“Please see the full list of affected routes on our website.”
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Riders can contact Passenger Care for trip planning assistance“For trip planning assistance or other questions, contact Passenger Care at 888-889-6368, TTY Relay 711, Monday through Friday, 8 a.m. to 6 p.m.”