King County Metro - 121 Schedule
Instructions: Click/Tap to highlight the row & column. Scroll/Swipe left and right for longer schedules.
Monday-Friday - Burien Transit Center
| 2nd Ave & Bell St | 3rd Ave & Union St | 2nd Ave & Pike St | Columbia St & Alaskan Way | Burien Transit Center - Bay 5 |
| 5:55am | 6:01am | 6:06am | 6:29am | |
| 6:53am | 6:59am | 7:04am | 7:27am | |
| 7:51am | 7:57am | 8:02am | 8:25am | |
| 8:46am | 8:52am | 8:57am | 9:20am | |
| 3:27pm | 3:30pm | 3:35pm | 3:59pm | |
| 4:27pm | 4:30pm | 4:35pm | 4:59pm | |
| 5:27pm | 5:30pm | 5:35pm | 5:57pm | |
| 6:27pm | 6:30pm | 6:34pm | 6:54pm |
Monday-Friday - 3rd and Union
| Burien Transit Center - Bay 3 | 3rd Ave & Madison St | 3rd Ave & Union St |
| 5:30am | 5:53am | 5:55am |
| 6:25am | 6:51am | 6:53am |
| 7:20am | 7:49am | 7:51am |
| 8:15am | 8:44am | 8:46am |
| 4:20pm | 4:48pm | 4:51pm |
| 5:20pm | 5:47pm | 5:50pm |
| 6:20pm | 6:46pm | 6:48pm |
| 7:20pm | 7:44pm | 7:46pm |