Annual Service Plan

Recent and upcoming Link light rail openings mean there will be changes to existing ST Express bus service. Learn what these changes could look like for you.

 

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An ST Express bus with a 2 Line station in the background

Overview

Sound Transit’s Annual Service Plan sets priorities for upcoming service changes. Every year, the agency analyzes routes based on ridership, performance trends, and other criteria to guide service modifications or additions. 

Below is a summary of the ST Express route proposals for fall 2026. Click on the route number for more details: 

RouteProposed changes for Fall 2026
513Enhance Route 513 and discontinue service to Eastmont Park & Ride 
515Eliminate temporary Route 515 
522Reroute to Shoreline South Station and enhance service 
535Improve service on weekends 
550Eliminate Route 550 
554/556Eliminate Route 554; shorten and enhance Route 556 
574Shorten to Federal Way Downtown Station and increase service   
580Eliminate Route 580 
586Eliminate Route 586 
Overnight service (North)Add new overnight route (Everett – Seattle) 
Overnight service (East)Add new overnight route (Redmond – Seattle) 
Overnight service (South)Add new overnight route (Lakewood – Seattle) 

No changes are proposed for the following routes: 510, 512, 532, 542, 545, 560, 566, 577, 578, 590, 592, 594, 595, 596.

The implementation of these proposals are subject to operational capacity at our partner agencies and may be partially implemented or deferred.

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Service plan engagement phases and development timeline

  • Phase 1 - April 2025 - Rider preferences

  • Phase 2 - July - August 2025 - Rail changes

  • Develop ST service concepts

  • Phase 3 - Oct. 6 - Nov. 7 - ST Express Changes
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  • Evaluate survey feedback and revise proposals if needed

  • Phase 4 - Early 2026 - Share updated ST Express proposals

  • Feb. / March 2026 - Final 2026 Service Plan approved by Board of Directors