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:
| Route | Proposed changes for Fall 2026 |
|---|---|
| 513 | Enhance Route 513 and discontinue service to Eastmont Park & Ride |
| 515 | Eliminate temporary Route 515 |
| 522 | Reroute to Shoreline South Station and enhance service |
| 535 | Improve service on weekends |
| 550 | Eliminate Route 550 |
| 554/556 | Eliminate Route 554; shorten and enhance Route 556 |
| 574 | Shorten to Federal Way Downtown Station and increase service |
| 580 | Eliminate Route 580 |
| 586 | Eliminate 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.
Please see the 2026 Service Plan Travel Time Estimates here.
I'm interested in...
South King County and Pierce County
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North King County and Snohomish County
Service plan engagement phases and development timeline
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Phase 1 - April 2025 - Rider preferences
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Phase 2 - July - August 2025 - Rail changes
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Develop ST service concepts
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Phase 3 - Oct. 6 - Nov. 11 - ST Express ChangesWe are here
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Evaluate survey feedback and revise proposals if needed
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Phase 4 - Early 2026 - Share updated ST Express proposals
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Feb. / March 2026 - Final 2026 Service Plan approved by Board of Directors