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RapidRide F Line

Coming in June to Burien, SeaTac, Tukwila, and Renton

Metro’s new bus rapid transit service will begin operating between Burien, SeaTac, Tukwila, and Renton on June 7, when the RapidRide F Line replaces Route 140.

F Line countdown

RapidRide service is being designed to keep people moving throughout the day in this heavily used transit corridor. Learn more about RapidRide

To make the bus system more efficient, Metro is also making changes to other bus routes in Renton in preparation for the start of service on the F Line.

Learn more

Connecting communities

The RapidRide F Line will give riders streamlined service to destinations along the route, including major employers, stores, medical and other services, and residential areas. The F Line will also provide connections to Link light rail and Sounder commuter rail.

Destinations include:

  • Downtown Burien
  • Riverton Heights
  • Westfield Southcenter Mall
  • Downtown Renton

RapidRide also will serve the Burien Transit Center, the Link Tukwila International Boulevard Station, Tukwila Sounder Station, South Renton Park-and-Ride, and Renton Transit Center.

Routing and stop locations

Between the Burien Transit Center and Tukwila Sounder Station, the F Line will follow the path of current Route 140, serving neighborhoods and employment centers along S 156th Street, the Tukwila International Boulevard Link Station, Southcenter Boulevard, the Westfield Southcenter Mall, and the surrounding commercial area.

From the Tukwila Sounder Station, the F Line will run along the Strander Boulevard extension (when it is completed), Oakesdale Avenue SW, SW 16th Street, Lind Avenue SW, SW Seventh Street, Rainier Avenue S, and the S Second/Third street couplet to and from the Renton Transit Center (see map at top right).

There will be about 26 stations and stops along the F Line, spaced an average of 2,250 feet apart (not including stops in downtown Seattle). Stops are spaced closer together where the F Line is the only service, and farther apart in areas served by other Metro routes.

Public involvement

Metro just completed outreach about possible changes to other bus service in Renton that would happen at the same time as the start of the F Line, and would make the transit system in Renton more efficient. Learn more and follow progress on the Metro Matters Blog.

Partners help buses go faster

Metro and the cities of Burien, SeaTac, Tukwila, and Renton are working together to help buses go faster through this corridor. Improvements through these partnerships will include:

  • Business Access and Transit (BAT) Lanes—business access, transit, and right turns only.
  • Transit Signal Priority—Additional green time at traffic signals to help buses get through intersections quickly.


  • 2010-2011: Initial planning and design
  • Jan.-March 2012: Public outreach for routing and stop spacing
  • June-July 2012: King County Council adoption of final routing and stop locations
  • Nov. 2012-Feb. 2013: Public outreach for related service changes in Renton
  • April-May 2013: King County Council adoption of service change package
  • Spring 2013: Construction begins
  • June 2014: RapidRide service and transit service changes in Renton begin
map: thumbnail

Map: F Line routing and stops View larger (390KB PDF)

The RapidRide F line will replace Route 140.