New south line Sounder trips start Sept. 25

Publish Date

Two new round-trip trains will add capacity and frequency during peak times 

Sound Transit is adding two new roundtrips to its popular south line Sounder service between Seattle and Lakewood beginning Monday, Sept. 25. The new trains will provide more choices, more capacity and more frequent departures. With the addition of these two trains, there will be 13 daily roundtrips on the Sounder south line in South King and Pierce counties. 

During peak hours, Sounder trains will arrive as often as every 20 minutes. In the morning peak, an additional train will run between the first Lakewood departure at 4:36 a.m. and the 5:45 a.m. departure. This additional train will help ease congestion on the line’s most crowded trains. 

In the afternoon, the new schedule will provide earlier service to Lakewood during the traditional peak, and reduce the gap between the first and second trains to 40 minutes. To enable this earlier departure, the 2:35 p.m. southbound train will terminate in Tacoma, with connecting express bus service from Puyallup to Lakewood. The last evening trip will depart King Street Station 10 minutes later, at 6:30 p.m.

Additionally, a third reverse-peak roundtrip will be added, allowing late morning travel to Tacoma and early afternoon travel to Seattle. To add capacity to the popular mid-day train Sound Transit launched last September, additional cars will be added. 

The new schedule and additional details of the south line Sounder service effective Sept. 25 is available at