Seattle to Sumner by Train

Travel from Seattle King Street Station in Seattle, WA to Sumner in Sumner, US on the Sounder Commuter Rail. Approximately 33 miles in 50m.

About this trip

The Sounder Commuter Rail connects Seattle and Sumner directly, with no transfer required. The train operates weekday peak service on two lines, and the segment between these two stations is one of 36 origin-destination pairs we catalog on this route.

Coverage of approximately 33 rail miles takes about 50m on a typical schedule. Actual travel time varies with the specific train number, time of day, equipment used, and seasonal speed restrictions. Trains may run faster on the daylight schedules and slower at peak demand on shared-use trackage. A more granular schedule comparison can be found in independent corridor timetable reviews updated each season.

Things to look out for: Puget Sound shoreline north of Seattle on the North Line.

Fares and ticketing

One-way fares between Seattle and Sumner typically run between $8 and $13. The lower end represents Saver-bucket advance-purchase coach fares, while the upper end approximates same-day walk-up fares or premium-class buckets. Sleeping car accommodations on overnight runs of the Sounder Commuter Rail, when offered, are sold separately from rail fare and increase total ticket cost substantially.

RailRover does not sell tickets. To book this trip, visit the operating carrier (Sound Transit) directly. Discounted fares are typically available with advance purchase, on midweek departures, and through loyalty programs. Several travelers track historical fare patterns on the corridor fare-watch newsletter to time their bookings.

Stations along the way

Between Seattle and Sumner, the Sounder Commuter Rail calls at the following stations. Some trains may operate as "limited-stop" schedules and skip certain intermediate calls; check the published timetable for your departure.

• Seattle King Street Station — Seattle, WA SEA
• Tukwila — Tukwila, WA TUK
• Kent — Kent, US KEN
• Auburn — Auburn, US AUB
• Sumner — Sumner, US SUM

Getting to Seattle King Street Station and from Sumner

Both stations are accessible by local public transit, taxi, and rideshare. Seattle King Street Station sits in Seattle, WA; arrival at Sumner places you in Sumner, US. Transfers from the platform to onward bus, light rail, or rideshare are well marked at the major hubs along this route. For specific transit connections at either station, see our station guides linked above.

Frequently asked questions

How long does the train from Seattle to Sumner take?

Approximately 50m on a typical schedule, covering about 33 miles.

Is there a direct train?

Yes — the Sounder Commuter Rail operates weekday peak service on two lines with no required transfer for this city pair.

How much does the ticket cost?

Approximately $8 to $13 for a one-way coach ticket. Premium classes and sleeping car accommodations cost more.

Can I bring a bicycle or pet?

Most long-distance and corridor trains accept checked or carry-on bicycles and small pets in carriers, with route-specific rules. Confirm with Sound Transit at the time of booking.