Arlington / Bus
Metro Transit 121 first and last departure times
121 · America/Los_Angeles
Selected branch: Downtown Seattle Via SR-509 · 14 stops. Service day: Friday, November 6, 2026.
First and last published boarding times
Friday, November 6, 2026 · Downtown Seattle Via SR-509. These are supplied times for this branch. Stops or trips with omitted times cannot establish complete first/last bounds. Drop-off-only visits are excluded. A frequency window’s end is labeled separately and is not an exact last departure.
| Boarding stop | First departure | Last departure / window end | Service notes |
|---|---|---|---|
| Burien Transit Center - Bay 5Visit 1 · 52305 | 6:15 AM | 6:36 PM | 8 scheduled departures |
| Sr 509 & S 128th StVisit 2 · 47735 | 6:19 AM | 6:40 PM | 8 scheduled departures |
| East Marginal Way S & S Lucile StVisit 3 · 40801 | 6:30 AM | 6:52 PM | 8 scheduled departures |
| East Marginal Way S & S Hudson StVisit 4 · 40802 | 6:30 AM | 6:53 PM | 8 scheduled departures |
| East Marginal Way S & S Alaska StVisit 5 · 40804 | 6:31 AM | 6:53 PM | 8 scheduled departures |
| East Marginal Way S & Diagonal Ave SVisit 6 · 40806 | 6:31 AM | 6:54 PM | 8 scheduled departures |
| East Marginal Way S & S Idaho StVisit 7 · 40807 | 6:32 AM | 6:54 PM | 8 scheduled departures |
| Alaskan Way S & S Jackson StVisit 8 · 1-1561 | 6:37 AM | 7:00 PM | 8 scheduled departures |
| Alaskan Way & Columbia StVisit 9 · 1-1559 | 6:38 AM | 7:01 PM | 8 scheduled departures |
| 3rd Ave & Madison StVisit 10 · 1-548 | 6:39 AM | 7:02 PM | 8 scheduled departures |
| 3rd Ave & Union StVisit 11 · 1-570 | 6:42 AM | 7:05 PM | 8 scheduled departures |
| 3rd Ave & Pine StVisit 12 · 1-590 | 6:43 AM | 7:06 PM | 8 scheduled departures |
| 3rd Ave & Virginia StVisit 13 · 1-600 | 6:45 AM | 7:08 PM | 8 scheduled departures |
| 3rd Ave & Bell StVisit 14 · 1-605 | 6:47 AM | 7:10 PM | 8 scheduled departures |
Times after midnight belong to the service date above. These route limits do not establish the last viable connecting journey. Check connection times separately, or use a reviewed airport guide for a direct airport journey.
First and last times on other branches
All other published stopping patterns for the same service date. Open a branch to compare its stop-by-stop boarding limits.
Burien Transit Center Via SR-509 · 14 stops · Pattern 927c6deab0f7782eb386deab
| Boarding stop / visit | First | Last departure / window end |
|---|---|---|
| 3rd Ave & Bell StVisit 1 · 1-400 | 5:44 AM | 6:00 PM |
| 3rd Ave & Virginia StVisit 2 · 1-420 | 5:45 AM | 6:01 PM |
| 3rd Ave & Pike StVisit 3 · 1-433 | 5:47 AM | 6:03 PM |
| 3rd Ave & Seneca StVisit 4 · 1-468 | 5:48 AM | 6:04 PM |
| 3rd Ave & Columbia StVisit 5 · 1-481 | 5:50 AM | 6:06 PM |
| Columbia St & Alaskan WayVisit 6 · 1-1558 | 5:52 AM | 6:08 PM |
| Alaskan Way S & S Jackson StVisit 7 · 1-1562 | 5:52 AM | 6:08 PM |
| East Marginal Way S & S Idaho StVisit 8 · 85059 | 5:58 AM | 6:15 PM |
| East Marginal Way S & Diagonal Ave SVisit 9 · 85062 | 5:58 AM | 6:16 PM |
| East Marginal Way S & S Alaska StVisit 10 · 85064 | 5:59 AM | 6:16 PM |
| East Marginal Way S & S Hudson StVisit 11 · 85066 | 5:59 AM | 6:17 PM |
| East Marginal Way S & S Lucile StVisit 12 · 85067 | 6:00 AM | 6:18 PM |
| Sr 509 & S 128th StVisit 13 · 85069 | 6:11 AM | 6:31 PM |
| Burien Transit Center - Bay 5Visit 14 · 52305 | 6:15 AM | 6:36 PM |
More Metro Transit travel information
Imported Oct 24, 2026 · 05:30 UTC · Service dates 2025-09-02 through 2027-12-31. See data status
Schedule data published by Metro Transit, Intercity Transit, City of Seattle, Community Transit, Pierce Transit, Sound Transit, Washington State Ferries, SeattleCenterMonorail, Everett Transit, Seattle Children's Hospital. Feed discovery and cached source archives from MobilityData. Source details ↗