Route 550 | ST Express bus
- from Seattle to Bellevue (Eastbound)
- from Bellevue to Seattle (Westbound)
Effective February 16, 2013 - June 8, 2013
| Route | Convention Place Station Bay D | International District Station | I-90 & Rainier Ave S* | Mercer Island P&R* | S Bellevue P&R Bay 1* | Bellevue TC Bay 12* | 110th Ave NE & NE 12th St* |
|---|---|---|---|---|---|---|---|
| 550 | 5:00AM | 5:08 | 5:11 | 5:16 | 5:21 | 5:31 | 5:34 |
| 550 | 5:27 | 5:35 | 5:38 | 5:43 | 5:48 | 5:58 | 6:01 |
| 550 | 5:43 | 5:51 | 5:54 | 5:59 | 6:04 | 6:14 | 6:17 |
| 550 | 5:59 | 6:07 | 6:10 | 6:15 | 6:20 | 6:30 | 6:33 |
| 550 | 6:14 | 6:22 | 6:25 | 6:31 | 6:36 | 6:46 | 6:49 |
| 550 | 6:28 | 6:36 | 6:39 | 6:45 | 6:50 | 7:00 | 7:03 |
| 550 | 6:42 | 6:50 | 6:53 | 6:59 | 7:04 | 7:14 | 7:17 |
| 550 | 6:54 | 7:02 | 7:05 | 7:11 | 7:17 | 7:28 | 7:31 |
| 550 | 7:06 | 7:15 | 7:18 | 7:26 | 7:32 | 7:44 | 7:47 |
| 550 | 7:18 | 7:27 | 7:30 | 7:38 | 7:44 | 7:56 | 7:59 |
| 550 | 7:28 | 7:37 | 7:40 | 7:48 | 7:54 | 8:06 | 8:09 |
| 550 | 7:38 | 7:47 | 7:50 | 7:58 | 8:04 | 8:16 | 8:19 |
| 550 | 7:48 | 7:57 | 8:00 | 8:08 | 8:14 | 8:26 | 8:29 |
| 550 | 7:58 | 8:07 | 8:10 | 8:18 | 8:24 | 8:36 | 8:39 |
| 550 | 8:08 | 8:17 | 8:20 | 8:28 | 8:34 | 8:46 | 8:49 |
| 550 | 8:20 | 8:29 | 8:32 | 8:40 | 8:46 | 8:58 | 9:01 |
| 550 | 8:35 | 8:44 | 8:47 | 8:55 | 9:01 | 9:13 | 9:16 |
| 550 | 8:50 | 8:59 | 9:02 | 9:10 | 9:16 | 9:28 | 9:31 |
| 550 | 9:05 | 9:13 | 9:16 | 9:24 | 9:30 | 9:41 | 9:44 |
| 550 | 9:20 | 9:28 | 9:31 | 9:37 | 9:42 | 9:53 | 9:56 |
| 550 | 9:36 | 9:44 | 9:47 | 9:53 | 9:58 | 10:09 | 10:12 |
| 550 | 9:52 | 10:00 | 10:03 | 10:09 | 10:14 | 10:25 | 10:28 |
| 550 | 10:08 | 10:16 | 10:19 | 10:25 | 10:30 | 10:41 | 10:44 |
| 550 | 10:24 | 10:32 | 10:35 | 10:41 | 10:46 | 10:57 | 11:00 |
| 550 | 10:40 | 10:48 | 10:51 | 10:56 | 11:01 | 11:12 | 11:15 |
| 550 | 10:55 | 11:03 | 11:06 | 11:11 | 11:16 | 11:27 | 11:30 |
| 550 | 11:10 | 11:18 | 11:21 | 11:26 | 11:31 | 11:42 | 11:45 |
| 550 | 11:25 | 11:33 | 11:36 | 11:41 | 11:46 | 11:57 | 12:00 |
| 550 | 11:40 | 11:48 | 11:51 | 11:56 | 12:01PM | 12:12 | 12:16 |
| 550 | 11:55 | 12:03 | 12:06 | 12:11 | 12:16 | 12:27 | 12:31 |
| 550 | 12:10 | 12:18 | 12:21 | 12:26 | 12:31 | 12:42 | 12:46 |
| 550 | 12:25 | 12:33 | 12:36 | 12:41 | 12:46 | 12:57 | 1:01 |
| 550 | 12:40 | 12:48 | 12:51 | 12:56 | 1:01 | 1:12 | 1:16 |
| 550 | 12:55 | 1:03 | 1:06 | 1:11 | 1:16 | 1:27 | 1:31 |
| 550 | 1:10 | 1:18 | 1:21 | 1:26 | 1:31 | 1:42 | 1:46 |
| 550 | 1:25 | 1:33 | 1:36 | 1:41 | 1:46 | 1:57 | 2:01 |
| 550 | 1:40 | 1:48 | 1:51 | 1:56 | 2:01 | 2:12 | 2:16 |
| 550 | 1:55 | 2:03 | 2:07 | 2:11 | 2:16 | 2:27 | 2:31 |
| 550 | 2:10 | 2:18 | 2:22 | 2:26 | 2:31 | 2:42 | 2:46 |
| 550 | 2:25 | 2:33 | 2:37 | 2:41 | 2:46 | 2:57 | 3:01 |
| 550 | 2:40 | 2:48 | 2:52 | 2:56 | 3:01 | 3:12 | 3:16 |
| 550 | 2:50 | 2:58 | 3:02 | 3:06 | 3:11 | 3:22 | 3:26 |
| 550 | 3:00 | 3:10 | 3:15 | 3:19 | 3:24 | 3:35 | 3:39 |
| 550 | 3:08 | 3:18 | 3:23 | 3:27 | 3:32 | 3:43 | 3:47 |
| 550 | 3:16 | 3:26 | 3:31 | 3:35 | 3:40 | 3:51 | 3:55 |
| 550 | 3:23 | 3:33 | 3:38 | 3:42 | 3:47 | 3:59 | 4:03 |
| 550 | 3:31 | 3:41 | 3:46 | 3:50 | 3:55 | 4:07 | 4:11 |
| 550 | 3:38 | 3:48 | 3:53 | 3:57 | 4:02 | 4:14 | 4:18 |
| 550 | 3:46 | 3:56 | 4:01 | 4:05 | 4:10 | 4:22 | 4:26 |
| 550 | 3:53 | 4:03 | 4:08 | 4:12 | 4:17 | 4:29 | 4:33 |
| 550 | 4:01 | 4:11 | 4:16 | 4:20 | 4:25 | 4:37 | 4:41 |
| 550 | 4:08 | 4:18 | 4:23 | 4:27 | 4:32 | 4:44 | 4:48 |
| 550 | 4:16 | 4:26 | 4:31 | 4:35 | 4:40 | 4:52 | 4:56 |
| 550 | 4:23 | 4:33 | 4:38 | 4:42 | 4:47 | 4:59 | 5:03 |
| 550 | 4:30 | 4:40 | 4:45 | 4:49 | 4:54 | 5:06 | 5:10 |
| 550 | 4:36 | 4:46 | 4:51 | 4:55 | 5:00 | 5:12 | 5:16 |
| 550 | 4:42 | 4:52 | 4:57 | 5:01 | 5:06 | 5:18 | 5:22 |
| 550 | 4:48 | 4:58 | 5:03 | 5:07 | 5:12 | 5:24 | 5:28 |
| 550 | 4:54 | 5:04 | 5:09 | 5:13 | 5:19 | 5:31 | 5:35 |
| 550 | 5:00 | 5:10 | 5:15 | 5:19 | 5:25 | 5:37 | 5:41 |
| 550 | 5:06 | 5:16 | 5:21 | 5:25 | 5:31 | 5:43 | 5:47 |
| 550 | 5:12 | 5:22 | 5:27 | 5:31 | 5:37 | 5:49 | 5:53 |
| 550 | 5:18 | 5:28 | 5:33 | 5:37 | 5:42 | 5:54 | 5:58 |
| 550 | 5:24 | 5:34 | 5:39 | 5:43 | 5:48 | 6:00 | 6:04 |
| 550 | 5:31 | 5:41 | 5:46 | 5:50 | 5:55 | 6:07 | 6:11 |
| 550 | 5:37 | 5:47 | 5:52 | 5:56 | 6:01 | 6:11 | 6:15 |
| 550 | 5:45 | 5:55 | 6:00 | 6:04 | 6:09 | 6:19 | 6:23 |
| 550 | 5:53 | 6:03 | 6:08 | 6:12 | 6:17 | 6:27 | 6:31 |
| 550 | 6:01 | 6:11 | 6:16 | 6:20 | 6:25 | 6:35 | 6:38 |
| 550 | 6:08 | 6:18 | 6:23 | 6:27 | 6:32 | 6:42 | 6:45 |
| 550 | 6:16 | 6:26 | 6:31 | 6:35 | 6:40 | 6:50 | 6:53 |
| 550 | 6:23 | 6:33 | 6:37 | 6:41 | 6:46 | 6:56 | 6:59 |
| 550 | 6:31 | 6:39 | 6:43 | 6:47 | 6:52 | 7:02 | 7:05 |
| 550 | 6:40 | 6:48 | 6:52 | 6:56 | 7:01 | 7:11 | 7:14 |
| 550 | 6:50 | 6:58 | 7:02 | 7:06 | 7:11 | 7:21 | 7:24 |
| 550 | 7:00 | 7:08 | 7:12 | 7:16 | 7:21 | 7:31 | 7:34 |
| 550 | 7:10 | 7:18 | 7:22 | 7:26 | 7:31 | 7:41 | 7:44 |
| 550 | 7:20 | 7:28 | 7:32 | 7:36 | 7:40 | 7:50 | 7:53 |
| 550 | 7:30 | 7:38 | 7:42 | 7:46 | 7:50 | 7:58 | 8:01 |
| 550 | 7:55 | 8:03 | 8:07 | 8:11 | 8:15 | 8:23 | 8:26 |
| 550 | 8:25 | 8:33 | 8:37 | 8:41 | 8:45 | 8:53 | 8:56 |
| 550 | 8:55 | 9:03 | 9:07 | 9:11 | 9:15 | 9:23 | 9:26 |
| 550 | 9:21 | 9:29 | 9:33 | 9:37 | 9:41 | 9:48 | 9:51 |
| 550 | 9:51 | 9:59 | 10:03 | 10:07 | 10:11 | 10:18 | 10:21 |
| 550 | 10:21 | 10:29 | 10:33 | 10:37 | 10:41 | 10:48 | 10:51 |
| 550 | 10:51 | 10:59 | 11:03 | 11:07 | 11:11 | 11:18 | 11:21 |
| 550 | 11:21 | 11:29 | 11:33 | 11:37 | 11:41 | 11:48 | 11:51 |
| 550 | 11:58 | 12:06AM | 12:10 | 12:14 | 12:18 | 12:25 | 12:28 |
| Route | Convention Place Station Bay D | International District Station | I-90 & Rainier Ave S* | Mercer Island P&R* | S Bellevue P&R Bay 1* | Bellevue TC Bay 12* | 110th Ave NE & NE 12th St* |
*This is an estimated timepoint for public guidance only. Buses will proceed on arrival to the next timepoint.