Morning rush
12 min 618 trips · 94% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Back BaytoSullivan Square
Orange Line
A direct train took 12 minutes on a typical trip. On a slower-than-usual trip, allow up to 13 minutes.
Typical12 min50th percentile
Slower trip13 min90th percentile
Scheduled12 minmedian timetable
On pace95%within 2 min of schedule
THE SHORT ANSWER
How long does Back Bay to Sullivan Square take?
Based on 2,830 direct trips between 2026-08-17 and 2026-09-15, the median observed ride was 12 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 13 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Time-of-day breakdown
Midday produced the fastest typical result in this window; Evening rush was slowest. Differences can change as the rolling dataset updates.
Midday
12 min 641 trips · 95% on paceEvening rush
12 min 668 trips · 96% on paceOff-peak
12 min 903 trips · 94% on paceHOW TO READ THIS
Measured, not promised.
TransitMeter pairs vehicle stop timestamps with the schedule active for each trip. We publish the median because one dramatic delay should not define an everyday journey, and the 90th percentile because riders still need to understand the bad end of normal.
We do not infer why a trip ran slowly. Construction, incidents, crowding and weather require separate evidence.
Read the complete method →MORE FROM Back Bay