Boston / Bus
MBTA 91 schedule and full timetable
Sullivan Square Station - Central Square, Cambridge · America/New_York
Selected branch: Sullivan · 14 stops. Service day: Saturday, October 24, 2026.
Sat, Oct 2427 published tripsSun, Oct 2525 published tripsMon, Oct 2630 published tripsTue, Oct 2730 published tripsWed, Oct 2830 published tripsThu, Oct 2930 published tripsFri, Oct 3030 published trips
MBTA 91 full stop-by-trip timetable
All stops on the selected branch, October 24, 2026. 27 fixed scheduled trips; showing 1–27. Frequency service is listed in the boarding schedule below. A dash means the agency supplies no time.
| Stop / trip | Trip 1 | Trip 2 | Trip 3 | Trip 4 | Trip 5 | Trip 6 | Trip 7 | Trip 8 | Trip 9 | Trip 10 | Trip 11 | Trip 12 | Trip 13 | Trip 14 | Trip 15 | Trip 16 | Trip 17 | Trip 18 | Trip 19 | Trip 20 | Trip 21 | Trip 22 | Trip 23 | Trip 24 | Trip 25 | Trip 26 | Trip 27 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| River St @ Green St | 5:40 AM | 6:25 AM | 7:10 AM | 7:55 AM | 8:44 AM | 9:22 AM | 10:12 AM | 10:54 AM | 11:40 AM | 12:25 PM | 1:10 PM | 1:52 PM | 2:41 PM | 3:26 PM | 4:06 PM | 4:55 PM | 5:40 PM | 6:26 PM | 7:10 PM | 7:54 PM | 8:40 PM | 9:25 PM | 10:10 PM | 10:48 PM | 11:36 PM | 12:30 AM +1 day | 1:35 AM +1 day |
| Prospect St @ Bishop Allen Dr | 5:40 AMEstimated | 6:25 AMEstimated | 7:10 AMEstimated | 7:55 AMEstimated | 8:44 AMEstimated | 9:23 AMEstimated | 10:13 AMEstimated | 10:55 AMEstimated | 11:41 AMEstimated | 12:26 PMEstimated | 1:11 PMEstimated | 1:53 PMEstimated | 2:42 PMEstimated | 3:27 PMEstimated | 4:07 PMEstimated | 4:56 PMEstimated | 5:41 PMEstimated | 6:27 PMEstimated | 7:11 PMEstimated | 7:55 PMEstimated | 8:41 PMEstimated | 9:26 PMEstimated | 10:11 PMEstimated | 10:49 PMEstimated | 11:37 PMEstimated | 12:30 AM +1 dayEstimated | 1:35 AM +1 dayEstimated |
| Prospect St @ Harvard St | 5:40 AMEstimated | 6:25 AMEstimated | 7:10 AMEstimated | 7:55 AMEstimated | 8:44 AMEstimated | 9:23 AMEstimated | 10:13 AMEstimated | 10:55 AMEstimated | 11:41 AMEstimated | 12:26 PMEstimated | 1:11 PMEstimated | 1:53 PMEstimated | 2:42 PMEstimated | 3:27 PMEstimated | 4:07 PMEstimated | 4:56 PMEstimated | 5:41 PMEstimated | 6:27 PMEstimated | 7:11 PMEstimated | 7:56 PMEstimated | 8:41 PMEstimated | 9:26 PMEstimated | 10:11 PMEstimated | 10:49 PMEstimated | 11:37 PMEstimated | 12:31 AM +1 dayEstimated | 1:36 AM +1 dayEstimated |
| Prospect St @ Broadway | 5:41 AMEstimated | 6:26 AMEstimated | 7:11 AMEstimated | 7:56 AMEstimated | 8:45 AMEstimated | 9:24 AMEstimated | 10:14 AMEstimated | 10:56 AMEstimated | 11:42 AMEstimated | 12:27 PMEstimated | 1:12 PMEstimated | 1:54 PMEstimated | 2:43 PMEstimated | 3:28 PMEstimated | 4:08 PMEstimated | 4:57 PMEstimated | 5:42 PMEstimated | 6:28 PMEstimated | 7:12 PMEstimated | 7:56 PMEstimated | 8:42 PMEstimated | 9:27 PMEstimated | 10:12 PMEstimated | 10:50 PMEstimated | 11:38 PMEstimated | 12:31 AM +1 dayEstimated | 1:36 AM +1 dayEstimated |
| Prospect St @ Gardner Rd | 5:41 AMEstimated | 6:26 AMEstimated | 7:11 AMEstimated | 7:56 AMEstimated | 8:45 AMEstimated | 9:24 AMEstimated | 10:14 AMEstimated | 10:56 AMEstimated | 11:42 AMEstimated | 12:27 PMEstimated | 1:12 PMEstimated | 1:54 PMEstimated | 2:43 PMEstimated | 3:28 PMEstimated | 4:08 PMEstimated | 4:57 PMEstimated | 5:42 PMEstimated | 6:28 PMEstimated | 7:12 PMEstimated | 7:57 PMEstimated | 8:42 PMEstimated | 9:27 PMEstimated | 10:12 PMEstimated | 10:50 PMEstimated | 11:38 PMEstimated | 12:31 AM +1 dayEstimated | 1:36 AM +1 dayEstimated |
| Prospect St @ Cambridge St | 5:41 AMEstimated | 6:26 AMEstimated | 7:11 AMEstimated | 7:56 AMEstimated | 8:45 AMEstimated | 9:25 AMEstimated | 10:15 AMEstimated | 10:57 AMEstimated | 11:43 AMEstimated | 12:28 PMEstimated | 1:13 PMEstimated | 1:55 PMEstimated | 2:44 PMEstimated | 3:29 PMEstimated | 4:09 PMEstimated | 4:58 PMEstimated | 5:43 PMEstimated | 6:29 PMEstimated | 7:13 PMEstimated | 7:58 PMEstimated | 8:43 PMEstimated | 9:28 PMEstimated | 10:13 PMEstimated | 10:51 PMEstimated | 11:39 PMEstimated | 12:32 AM +1 dayEstimated | 1:37 AM +1 dayEstimated |
| Prospect St @ Webster Ave | 5:42 AMEstimated | 6:27 AMEstimated | 7:12 AMEstimated | 7:57 AMEstimated | 8:46 AMEstimated | 9:27 AMEstimated | 10:17 AMEstimated | 10:59 AMEstimated | 11:46 AMEstimated | 12:31 PMEstimated | 1:16 PMEstimated | 1:58 PMEstimated | 2:47 PMEstimated | 3:32 PMEstimated | 4:12 PMEstimated | 5:01 PMEstimated | 5:45 PMEstimated | 6:31 PMEstimated | 7:15 PMEstimated | 8:01 PMEstimated | 8:45 PMEstimated | 9:30 PMEstimated | 10:15 PMEstimated | 10:53 PMEstimated | 11:41 PMEstimated | 12:34 AM +1 dayEstimated | 1:39 AM +1 dayEstimated |
| Prospect St @ Union Sq - Green Line | 5:43 AMEstimated | 6:28 AMEstimated | 7:13 AMEstimated | 7:58 AMEstimated | 8:47 AMEstimated | 9:28 AMEstimated | 10:18 AMEstimated | 11:00 AMEstimated | 11:47 AMEstimated | 12:32 PMEstimated | 1:17 PMEstimated | 1:59 PMEstimated | 2:48 PMEstimated | 3:33 PMEstimated | 4:13 PMEstimated | 5:02 PMEstimated | 5:46 PMEstimated | 6:32 PMEstimated | 7:16 PMEstimated | 8:02 PMEstimated | 8:46 PMEstimated | 9:31 PMEstimated | 10:16 PMEstimated | 10:54 PMEstimated | 11:42 PMEstimated | 12:35 AM +1 dayEstimated | 1:40 AM +1 dayEstimated |
| Washington St @ Rossmore St | 5:44 AMEstimated | 6:29 AMEstimated | 7:14 AMEstimated | 7:59 AMEstimated | 8:48 AMEstimated | 9:30 AMEstimated | 10:20 AMEstimated | 11:02 AMEstimated | 11:49 AMEstimated | 12:34 PMEstimated | 1:19 PMEstimated | 2:01 PMEstimated | 2:50 PMEstimated | 3:35 PMEstimated | 4:15 PMEstimated | 5:04 PMEstimated | 5:48 PMEstimated | 6:34 PMEstimated | 7:18 PMEstimated | 8:03 PMEstimated | 8:47 PMEstimated | 9:32 PMEstimated | 10:17 PMEstimated | 10:55 PMEstimated | 11:43 PMEstimated | 12:36 AM +1 dayEstimated | 1:41 AM +1 dayEstimated |
| Washington St @ New Washington St | 5:46 AMEstimated | 6:31 AMEstimated | 7:16 AMEstimated | 8:01 AMEstimated | 8:50 AMEstimated | 9:32 AMEstimated | 10:22 AMEstimated | 11:04 AMEstimated | 11:51 AMEstimated | 12:36 PMEstimated | 1:21 PMEstimated | 2:03 PMEstimated | 2:52 PMEstimated | 3:37 PMEstimated | 4:17 PMEstimated | 5:06 PMEstimated | 5:50 PMEstimated | 6:36 PMEstimated | 7:20 PMEstimated | 8:05 PMEstimated | 8:49 PMEstimated | 9:34 PMEstimated | 10:19 PMEstimated | 10:57 PMEstimated | 11:45 PMEstimated | 12:37 AM +1 dayEstimated | 1:42 AM +1 dayEstimated |
| Washington St opp Myrtle St | 5:47 AMEstimated | 6:32 AMEstimated | 7:17 AMEstimated | 8:02 AMEstimated | 8:51 AMEstimated | 9:33 AMEstimated | 10:23 AMEstimated | 11:05 AMEstimated | 11:52 AMEstimated | 12:37 PMEstimated | 1:22 PMEstimated | 2:04 PMEstimated | 2:53 PMEstimated | 3:38 PMEstimated | 4:18 PMEstimated | 5:07 PMEstimated | 5:51 PMEstimated | 6:37 PMEstimated | 7:21 PMEstimated | 8:06 PMEstimated | 8:50 PMEstimated | 9:35 PMEstimated | 10:20 PMEstimated | 10:58 PMEstimated | 11:46 PMEstimated | 12:38 AM +1 dayEstimated | 1:43 AM +1 dayEstimated |
| Washington St @ Inner Belt Rd | 5:48 AMEstimated | 6:33 AMEstimated | 7:18 AMEstimated | 8:03 AMEstimated | 8:52 AMEstimated | 9:34 AMEstimated | 10:24 AMEstimated | 11:06 AMEstimated | 11:53 AMEstimated | 12:38 PMEstimated | 1:23 PMEstimated | 2:05 PMEstimated | 2:54 PMEstimated | 3:39 PMEstimated | 4:19 PMEstimated | 5:08 PMEstimated | 5:52 PMEstimated | 6:38 PMEstimated | 7:22 PMEstimated | 8:06 PMEstimated | 8:50 PMEstimated | 9:35 PMEstimated | 10:20 PMEstimated | 10:58 PMEstimated | 11:46 PMEstimated | 12:39 AM +1 dayEstimated | 1:44 AM +1 dayEstimated |
| Cambridge St @ Carter St | 5:49 AMEstimated | 6:34 AMEstimated | 7:19 AMEstimated | 8:04 AMEstimated | 8:53 AMEstimated | 9:34 AMEstimated | 10:24 AMEstimated | 11:06 AMEstimated | 11:53 AMEstimated | 12:38 PMEstimated | 1:23 PMEstimated | 2:06 PMEstimated | 2:55 PMEstimated | 3:40 PMEstimated | 4:20 PMEstimated | 5:09 PMEstimated | 5:53 PMEstimated | 6:39 PMEstimated | 7:23 PMEstimated | 8:07 PMEstimated | 8:51 PMEstimated | 9:36 PMEstimated | 10:21 PMEstimated | 10:59 PMEstimated | 11:47 PMEstimated | 12:39 AM +1 dayEstimated | 1:44 AM +1 dayEstimated |
| Sullivan Square | 5:51 AMDrop-off onlyEstimated | 6:36 AMDrop-off onlyEstimated | 7:21 AMDrop-off onlyEstimated | 8:06 AMDrop-off onlyEstimated | 8:55 AMDrop-off onlyEstimated | 9:37 AMDrop-off onlyEstimated | 10:27 AMDrop-off onlyEstimated | 11:09 AMDrop-off onlyEstimated | 11:56 AMDrop-off onlyEstimated | 12:41 PMDrop-off onlyEstimated | 1:26 PMDrop-off onlyEstimated | 2:09 PMDrop-off onlyEstimated | 2:58 PMDrop-off onlyEstimated | 3:43 PMDrop-off onlyEstimated | 4:23 PMDrop-off onlyEstimated | 5:12 PMDrop-off onlyEstimated | 5:56 PMDrop-off onlyEstimated | 6:42 PMDrop-off onlyEstimated | 7:26 PMDrop-off onlyEstimated | 8:09 PMDrop-off onlyEstimated | 8:53 PMDrop-off onlyEstimated | 9:38 PMDrop-off onlyEstimated | 10:23 PMDrop-off onlyEstimated | 11:01 PMDrop-off onlyEstimated | 11:49 PMDrop-off onlyEstimated | 12:41 AM +1 dayDrop-off onlyEstimated | 1:46 AM +1 dayDrop-off onlyEstimated |
Every departure from River St @ Green St
For the selected service day and branch. After-midnight times retain their service-day association; “+1 day” means the following calendar day.
| Departure / window | Destination | Boarding notes |
|---|---|---|
| 5:40 AM | Sullivan | Scheduled |
| 6:25 AM | Sullivan | Scheduled |
| 7:10 AM | Sullivan | Scheduled |
| 7:55 AM | Sullivan | Scheduled |
| 8:44 AM | Sullivan | Scheduled |
| 9:22 AM | Sullivan | Scheduled |
| 10:12 AM | Sullivan | Scheduled |
| 10:54 AM | Sullivan | Scheduled |
| 11:40 AM | Sullivan | Scheduled |
| 12:25 PM | Sullivan | Scheduled |
| 1:10 PM | Sullivan | Scheduled |
| 1:52 PM | Sullivan | Scheduled |
| 2:41 PM | Sullivan | Scheduled |
| 3:26 PM | Sullivan | Scheduled |
| 4:06 PM | Sullivan | Scheduled |
| 4:55 PM | Sullivan | Scheduled |
| 5:40 PM | Sullivan | Scheduled |
| 6:26 PM | Sullivan | Scheduled |
| 7:10 PM | Sullivan | Scheduled |
| 7:54 PM | Sullivan | Scheduled |
| 8:40 PM | Sullivan | Scheduled |
| 9:25 PM | Sullivan | Scheduled |
| 10:10 PM | Sullivan | Scheduled |
| 10:48 PM | Sullivan | Scheduled |
| 11:36 PM | Sullivan | Scheduled |
| 12:30 AM +1 day | Sullivan | Scheduled |
| 1:35 AM +1 day | Sullivan | Scheduled |
More MBTA travel information
Published MBTA schedule
Imported Oct 23, 2026 · 19:06 UTC · Service dates 2026-10-14 through 2026-12-12. See data status
Schedule and realtime data provided by MassDOT / MBTA. Source details ↗