服務日期起始時間從 03:39 出發於 2026年9月13日預定出發顯示 50公車行程至預定預期時間171Logan Airport via Andrew04:2004:14171Logan Airport via Andrew04:50—SL1South Station05:48—SL1South Station06:03—SL1South Station06:18—SL1South Station06:29—SL1South Station06:39—SL1South Station06:49—SL1South Station06:59—SL1South Station07:10—SL1South Station07:20—SL1South Station07:30—SL1South Station07:40—SL1South Station07:51—SL1South Station08:01—SL1South Station08:11—SL1South Station08:21—SL1South Station08:32—SL1South Station08:42—SL1South Station08:52—SL1South Station09:03—SL1South Station09:14—SL1South Station09:25—SL1South Station09:37—SL1South Station09:48—SL1South Station09:59—SL1South Station10:10—SL1South Station10:21—SL1South Station10:32—SL1South Station10:43—SL1South Station10:54—SL1South Station11:05—SL1South Station11:16—SL1South Station11:27—SL1South Station11:38—SL1South Station11:49—SL1South Station12:01—SL1South Station12:13—SL1South Station12:25—SL1South Station12:35—SL1South Station12:46—SL1South Station12:58—SL1South Station13:10—SL1South Station13:20—SL1South Station13:32—SL1South Station13:44—SL1South Station13:56—SL1South Station14:04—SL1South Station14:10—SL1South Station14:23—51–100 →計劃、預期與觀察值仍然分開。空白觀察從不顯示為準時。