RapidRide A Line

A Line

RapidRide bus running on the A Line
System RapidRide
Operator King County Metro
Garage South Base
Vehicle New Flyer DE60LFA
New Flyer DE60LFR[1]
Began service October 2, 2010
Predecessors Route 174
Locale King County
Start Tukwila International Boulevard Station
Via Pacific Highway South
End Federal Way Transit Center
Length 11 miles
Frequency Peak: 10 minutes
Off-peak: 15 minutes
Late night: 30-70 minutes
Weekend frequency 15 minutes (most times)
Journey time 44 minutes
Operates 24 hours
Daily ridership 10,100 (weekday average, spring 2015)[2]
Fare Peak: $2.75
Off-peak: $2.50
Timetable A Line timetable
Map A Line map
Route map
RapidRide A Line
Link light rail
Central Link
to Univ. of WA via Downtown
to Burien

Tukwila International
Boulevard station
to Renton
SR 518
S 160th St
S 170th St

S 176th St
(SeaTac/Airport station)
Seattle–Tacoma International Airport

S 180th St

S 182nd St
S 188th St
S 195th St

S 200th St
(Angle Lake station)
S 208th St
S 216th St
S 224th St
Kent-Des Moines Rd
S 240th St
(Highline College)
S 246th St
S 252nd St
S 260th St
S 268th St
(Woodmont Library)
S 272nd St
S 276th St
(Redondo Heights Park & Ride)

S 283rd St
S 288th St
S Dash Point Rd
S 308th St
(Federal Way High School)
S 312th St
S 316th St
Federal Way
Transit Center


northbound only stop

southbound only stop
Parking Park and Ride
Seattle–Tacoma International Airport Airport
 {{{previous_line}}}  {{{system_nav}}}  B Line 

The A Line is one of six RapidRide lines (routes with some bus rapid transit features) operated by King County Metro in King County, Washington. The A Line began service on October 2, 2010,[3] running from Tukwila to Federal Way, mostly along Pacific Highway South. The northern terminus is Tukwila/International Boulevard Station. From there, riders can transfer to Sound Transit's Link light rail, the RapidRide F Line, or to other King County Metro buses that serve Burien, Tukwila, SeaTac, Georgetown, SoDo, and downtown Seattle. Its southern terminus is Federal Way Transit Center[4] and connects riders to buses serving Tacoma, Pierce County, and Auburn. Between the termini there are a total of 13 stations[4] plus 13 intermediate stops.[5]


This corridor was previously served by King County Metro route 174[6] which carried an average of 5,570 riders on weekdays during the last month in service.[7] Since the implementation of RapidRide on the corridor, ridership has grown 81 percent and the A Line served an average of 10,100 riders on weekdays in spring 2015.[2]


Time Monday-Friday Weekend/Holidays
4:15 am – 4:45 am 15 30
4:45 am – 7:00 am 15 15
7:00 am – 9:00 am 10 15
9:00 am – 2:00 pm 15 15
2:00 pm – 6:00 pm 10 15
6:00 pm – 10:00 pm 15 15
10:00 pm – 4:15 am 30-70 30-70

Between 10:00 pm and 4:15 am, service operates on a schedule; all other times are estimated headways.


  1. "King County Metro Transit's Bus Rapid Transit System". May 4, 2009. Retrieved June 21, 2015.
  2. 1 2 2015 Service Guidelines Report (PDF). King County Metro. October 2015. p. A-22. Retrieved December 11, 2015.
  3. "Metro's new RapidRide "A" Line to connect Tukwila and Federal Way launches Oct. 2" (Press release). King County Department of Transportation. October 1, 2010. Retrieved June 21, 2015.
  4. 1 2 "Pacific Highway South RapidRide". King County Metro Transit. October 9, 2007. Retrieved March 30, 2009.
  5. "Pacific Highway South RapidRide > Map". King County Metro Transit. October 9, 2007. Retrieved March 30, 2009.
  6. "Metro Route 174 Map". King County Metro Transit. Retrieved May 6, 2009.
  7. Lindblom, Mike (July 7, 2014). "RapidRide use is way up". The Seattle Times. Retrieved July 7, 2014.
  8. "RapidRide A Line: Schedule". King County Metro. September 27, 2010. Retrieved October 4, 2010.
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