Sound Transit, Metro Transit, City of Seattle - King County Metro / Bus
121
Schedules, stops & departures · King County
FROM Burien Transit Center - Bay 5
Next departures
Toward Downtown Seattle Via SR-509
FOLLOW THE LINE
Every stop along the way.
- Burien Transit Center - Bay 5Stop 52305
- Sr 509 & S 128th StStop 47735
- East Marginal Way S & S Lucile StStop 40801
- East Marginal Way S & S Hudson StStop 40802
- East Marginal Way S & S Alaska StStop 40804
- East Marginal Way S & Diagonal Ave SStop 40806
- East Marginal Way S & S Idaho StStop 40807
- Alaskan Way S & S Jackson StStop 1561
- Alaskan Way & Columbia StStop 1559
- 3rd Ave & Madison StStop 548
- 3rd Ave & Union StStop 570
- 3rd Ave & Pine StStop 590
- 3rd Ave & Virginia StStop 600
- 3rd Ave & Bell StStop 605
THE WHOLE DAY, AT A GLANCE
Full boarding-stop schedule
Departures from Burien Transit Center - Bay 5 toward Downtown Seattle Via SR-509. These are scheduled times; live changes appear in the departure board.
~ indicates an agency-estimated intermediate time. Frequency service is shown as an interval rather than an exact departure.
View timetable for every stop →FARES & PAYMENT
Check the agency’s current fare rules.
Prices and transfer eligibility depend on your journey and fare product.
Imported Oct 24, 2026 · 04:36 UTC · Service dates 2026-08-29 through 2027-12-31. See data status
Schedule data published by Sound Transit, Metro Transit, City of Seattle - King County Metro. Feed discovery and cached source archives from MobilityData. Source details ↗