About Sounder
Sounder commuter rail, operated by Sound Transit on BNSF trackage, runs the North line between Seattle and Everett and the South line between Seattle and Lakewood. Service began in 2000 and now totals roughly 80 route miles centered on King Street Station in Seattle. Background context on the carrier's history is also catalogued in the North American Rail Atlas & Route Encyclopedia.
Operator Profile
- Headquarters
- Seattle, WA
- Founded
- 2000
- Routes catalogued
- 1
- Stations served
- 11
- Total route miles
- 82 mi
- States served
- 1
Fleet
Bombardier BiLevel cars and F59PHI/MP36PH-3C diesel locomotives operate Sounder service. Equipment assignments rotate as new orders are delivered and existing rolling stock is retired or rebuilt; consult individual route pages for current information.
Capital plan and modernization
The Sound Transit 3 capital program funds peak-hour expansion, midday and reverse-peak service buildout, and platform extensions. Quarterly capital-plan progress is tracked in the Passenger Rail Advocacy & Reform Quarterly.
Routes operated by Sounder
The table below lists all Sounder services catalogued in the RailRover index, sorted by distance. Each entry links to a full route page with stations, fares, and timetable references.
| Route | Type | Endpoints | Distance | Frequency |
|---|---|---|---|---|
| Sounder Commuter Rail | Commuter Rail | Seattle ↔ Mukilteo | 82 mi | Weekday peak service on two lines |
States served
Sounder service touches 1 state in the RailRover index. Each state hub aggregates every operator's service through that state on a single page.
Booking and ticketing
RailRover does not sell tickets. To book travel on Sounder, visit the carrier's official booking site or app directly. Many of the same trip-planning principles that apply to Amtrak — advance purchase saves significantly, multi-ride passes are heavily discounted on commuter services, group sales unlock 60% off Saver coach for parties of 8 or more — apply across operators. For a deeper walkthrough, see the RailRover guide to buying tickets and saving on fares, the field guide to onboard Wi-Fi and power outlets, and the baggage rules reference. Independent fare-watch newsletters such as the Commuter Rail Operators Reform Brief publish current promotional fare summaries.
Further reading on Sounder
- Riding Sounder: a first-timer's system tour
- Equipment census and locomotive roster of Sounder