This is a list of current routes operated by the mass transit agency King County Metro in the Greater Seattle area. It includes routes directly operated by the agency, routes operated by contractors and routes operated by King County Metro under contract with another agency. Routes are organized by route number (or letters in the case of RapidRide). Discontinued routes and former versions of existing routes are not listed.

These lists reflect the September 2026 service change.

RapidRide

King County Metro's RapidRide lines are designated by letters. RapidRide routes also have a numerical designation in the range 671-678, but this is not displayed to passengers.

Route Start Via EndNight Owl Links A Line Tukwila International Blvd Station Pacific Highway S (State Route 99), SeaTac, Sea–Tac Airport, Des Moines, Highline College, Kent, Redondo Heights P&R, Federal Way Federal Way Downtown Station ScheduleMap B Line Downtown Redmond Station Redmond, Overlake, Overlake Transit Center, Overlake P&R, Crossroads, Bellevue Bellevue Transit Center ScheduleMap C Line South Lake Union Downtown Seattle, West Seattle, Alaska Junction, Morgan Junction, Fauntleroy Ferry Terminal Westwood Village ScheduleMap D Line Crown Hill Ballard, Interbay, Uptown, Belltown Downtown Seattle ScheduleMap E Line Aurora Village Transit Center Aurora Ave N, Shoreline, Bitter Lake, Licton Springs, Greenwood, West Green Lake, North Fremont, East Queen Anne, Westlake, Belltown Downtown Seattle ScheduleMap F Line Burien Transit Center Burien, SeaTac, Tukwila, Tukwila International Boulevard Station, Southcenter Mall, Tukwila Station, Renton, South Renton P&R, Renton Transit Center, Boeing Renton Factory The Landing (Renton) ScheduleMapG LineDowntown SeattleFirst Hill, Madison StreetMartin Luther King Jr. Way in Madison Valley H Line Burien Transit Center Burien, White Center, Delridge, West Seattle Downtown Seattle ScheduleMap

1–99 (Seattle)

These routes run mostly within the city of Seattle. Trolley routes may be operated by electric trolleybuses. Conventional routes are not operated by trolleybuses, but are instead operated by diesel, diesel-electric hybrid, or battery-electric buses. All bus routes in other sections of this page are conventional routes. Route Type Off-Peak Sat SunNight Owl Start Via End Continues as Links 1 Trolley Kinnear(West Queen Anne) Kinnear Park, Seattle Center West (Uptown), Belltown Downtown Seattle 14 ScheduleMap 2 Trolley West Queen Anne Queen Anne Ave N, Seattle Center West (Uptown), Belltown, Downtown Seattle, First Hill, E Union St, Central District, Madrona Madrona Park 13 (Alternating trips from Madrona) ScheduleMap 3 Trolley Summit Lower Capitol Hill, Downtown Seattle, First Hill, Harborview Medical Center, E Jefferson St, Swedish Hospital Cherry Hill, Central District Madrona ScheduleMap 4 Trolley Seattle Pacific University(North Queen Anne) 5 Ave N, East Queen Anne, Seattle Center East (Uptown), Belltown, Downtown Seattle, First Hill, Harborview Medical Center, E Jefferson Ave, Swedish Hospital Cherry Hill, Central District Judkins Park ScheduleMap 4 Shuttle Trolley Cherry Hill Judkins Park ScheduleMap 5 Conventional Shoreline Community College Shoreline, Greenwood Ave N, Bitter Lake, Greenwood, Phinney Ridge, Phinney Ave N, Woodland Park Zoo, North Fremont, Aurora Ave N, East Queen Anne, Westlake, Belltown Downtown Seattle 21 ScheduleMap 7 Trolley Downtown Seattle S Jackson St, International District, Rainier Ave S, Mount Baker Transit Center, Rainier Valley, Columbia City Rainier Beach ScheduleMap 8 Conventional Seattle Center(Uptown) Denny Way, Capitol Hill, Capitol Hill Station, Group Health Hospital, Martin Luther King Junior Way, Madison Valley, Central District Mount Baker Transit Center ScheduleMap 9 Express Conventional Capitol Hill Broadway, Seattle Central College, First Hill, Rainier Valley, Columbia City, Rainier Beach Rainier Beach Station ScheduleMap 10 Trolley Downtown Seattle Summit, Capitol Hill Station, Group Health Hospital, 15th Ave E Capitol Hill ScheduleMap 11 Conventional Downtown Seattle Capitol Hill, Seattle Central College, E Madison St, Central District, Madison Valley Madison Park ScheduleMap 12 Trolley Downtown Seattle First Hill, Swedish Medical Center, Seattle University, 19th Ave E, Group Health Hospital Interlaken Park(Capitol Hill) ScheduleMap 13 Trolley Seattle Pacific University(North Queen Anne) Queen Anne Ave N, Seattle Center West (Uptown), Belltown Downtown Seattle 2 (Downtown-Madrona) ScheduleMap 14 Trolley Downtown Seattle S Jackson St, International District, Central District, 31 Ave S, Mount Baker Transit Center Mount Baker 1 ScheduleMap 17 Express Conventional Sunset Hill 32nd Ave NW, Ballard Downtown Seattle ScheduleMap 21 Local Conventional Downtown Seattle SODO, West Seattle, 35th Ave SW, High Point, Gatewood Westwood Village 5 ScheduleMap 21 Express Conventional Downtown Seattle Alaskan Way Viaduct, West Seattle, 35th Ave SW, High Point, Gatewood Arbor Heights ScheduleMap 22 Conventional Alaska Junction West Seattle, Morgan Junction, Gatewood, Westwood Village Arbor Heights ScheduleMap 24 Conventional West Magnolia Discovery Park, W Viewmont Way, Central Magnolia, 34th Ave W, 28th Ave W, Smith Cove Cruise Terminal (Pier 91), Seattle Center, Belltown Downtown Seattle 124 ScheduleMap 27 Conventional Downtown Seattle First Hill, Central District, E Yesler Way, Leschi Park Colman Park 33 (morning, nights and Sunday) ScheduleMap 28 Express Conventional Carkeek Park 8th Ave NW, Crown Hill, East Ballard, West Woodland, North Fremont, Aurora Ave N Downtown Seattle 131/132 ScheduleMap 31 Conventional Central Magnolia East Magnolia, Interbay, Seattle Pacific University, Fremont, Wallingford, University District, University of Washington campus, University Village Children's Hospital ScheduleMap 32 Conventional Seattle Center(Uptown) Interbay, Seattle Pacific University, Fremont, Wallingford, University District, University of Washington campus, University Village Children's Hospital ScheduleMap 33 Conventional East Magnolia(Discovery Park) Smith Cove Cruise Terminal (Pier 91), Seattle Center, Belltown Downtown Seattle 27 (morning, nights and Sunday)/124 (daytime) ScheduleMap 36 Trolley Downtown Seattle S Jackson St, Pacific Medical Center, Beacon Hill, Beacon Ave S, Jefferson Park, VA Hospital Othello Station ScheduleMap 40 Conventional Northgate Station North Seattle College, Crown Hill, Loyal Heights, Ballard, Fremont, South Lake Union Downtown Seattle ScheduleMap 43 Trolley Downtown Seattle Capitol Hill, Capitol Hill Station, Group Health Hospital, Central District, Montlake, University of Washington Station, UW Medical Center, University of Washington University District 44 (certain trips) ScheduleMap 44 Trolley Ballard(Chittenden Locks) NW Market St, West Woodland, N 45th St, Wallingford, University District, University of Washington, UW Medical Center University of Washington Station 43 (certain trips) ScheduleMap 45 Conventional Loyal Heights NW 85th St, Crown Hill, Greenwood, Green Lake, Roosevelt, Ravenna, University District University of Washington Station ScheduleMap 48 Conventional University District University of Washington, UW Medical Center, University of Washington Station, Montlake, 23rd Ave, Central District Mount Baker Transit Center ScheduleMap 49 Trolley University District 10th Ave E, Capitol Hill, Broadway, Seattle Central Community College Downtown Seattle ScheduleMap 50 Conventional Alki Point Admiral District, Alaska Junction, SODO, SODO Station, SODO Busway, Beacon Hill, VA Hospital, Columbia City, Seward Park Othello Station ScheduleMap 56 Conventional Alki Point Admiral District, Alaskan Way Viaduct Downtown Seattle ScheduleMap 57 Conventional Alaska Junction Genesee Hill, Admiral District, Alaskan Way Viaduct Downtown Seattle ScheduleMap 60 Conventional Capitol Hill Broadway, Seattle Central College, First Hill, Seattle University, Swedish Medical Center, Harborview Medical Center, Pacific Medical Center, Beacon Hill Station, Georgetown, Olson/Myers P&R, White Center Westwood Village ScheduleMap61ConventionalLake CityMeadowbrook, Northgate Station, Licton SpringsGreenwood 62 Conventional Downtown Seattle Belltown, South Lake Union, Dexter Ave N, Fremont, Wallingford, Green Lake, NE 65th St, Roosevelt, Ravenna, Bryant, Magnuson Park Sand Point ScheduleMap 65 Conventional Shoreline South/148th Station Lake City, 35th Ave NE, Wedgwood, Bryant, Children’s Hospital, University Village, University of Washington, University of Washington Station University District 67 ScheduleMap 67 Conventional Northgate Station Roosevelt Way NE, Maple Leaf, Roosevelt, University District, University of Washington, University of Washington Station Children's Hospital 65 ScheduleMap 70 Trolley University District Eastlake Ave E, Eastlake, Fairview Ave N, South Lake Union Downtown Seattle ScheduleMap 72 Conventional University District University Village, Ravenna, Wedgwood, Lake City Shoreline South/148th Station ScheduleMap 75 Conventional Northgate Station Northgate, Lake City, Matthews Beach, Sand Point, View Ridge, Windermere, Children's Hospital, University Village, University of Washington University District 77 ScheduleMap 77 Conventional Bitter Lake Haller Lake, Pinehurst Station, Lake City, Roosevelt, Ravenna, University District, University of Washington Children's Hospital 77 ScheduleMap 79Conventional Green Lake P&RRoosevelt, Wedgwood, View Ridge, Hawthorne Hills, Windermere, RavennaUniversity District Schedule Map

Route 90 (Snow Shuttle)

Route 90 operates when snow routes are in effect in the Central Seattle area, and when the Emergency Service Network has been activated due to severe weather. Route 90 buses travel between Downtown Seattle and First Hill, via Capitol Hill, serving all marked stops along the route from approximately 5:30 a.m. to 11:30 p.m.

Route 96 & 98 (Seattle Streetcar)

Route Off-Peak Sat Sun Name Start Via End Links 96 First Hill Streetcar Pioneer Square King Street Station, Chinatown-International District, Central District, Yesler Terrace, First Hill, Swedish Medical Center, Seattle University, Seattle Central College Capitol Hill (Link Station) Information 98 South Lake Union Streetcar Downtown Seattle (Westlake Hub) South Lake Union, Lake Union Park Fred Hutchinson Cancer Research Center Information

Link Shuttles

King County Metro operates Link shuttle routes when service on Sound Transit's Link Light Rail is suspended for a prolonged period of time. Shuttles for the 1 Line operate as Route 97 and shuttles for the 2 Line operate as Route 92. If the entire line is closed, Link shuttle buses emulate trains, stopping at every Station along the line. If only a section of the line is closed, these buses serve as a "bus bridge" shuttling passengers between the operating sections of the line and stopping near intermediate Stations on the closed section of the line, in the case of a multi-Station closure. Limited stop shuttles may also be operated in the case of a multi-Station closure.

100s (South King County)

Routes in the 100 series primarily serve destinations in South King County and on Vashon Island.