Morning rush
7.8 min 744 trips · 99% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Oak GrovetoSullivan Square
Orange Line
A direct MBTA train from Oak Grove to Sullivan Square took a median 7.8 minutes across 3,430 observed trips; 90% of measured rides finished within approximately 8.2 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical7.8 min50th percentile
Slower trip8.2 min90th percentile
Scheduled8.2 minmedian timetable
On pace97%within 2 min of schedule
THE SHORT ANSWER
How long does Oak Grove to Sullivan Square take?
The median completed ride from Oak Grove to Sullivan Square was 7.8 minutes; the published schedule’s median was 8.2 minutes.
Based on 3,430 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 7.8 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 8.2 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Oak Grove to Sullivan Square times by daypart
Evening rush produced the fastest median for Oak Grove to Sullivan Square; Off-peak produced the slowest.
Differences can change as the rolling dataset updates.
Midday
7.8 min 590 trips · 98% on paceEvening rush
7.8 min 647 trips · 95% on paceOff-peak
7.8 min 1,449 trips · 97% on paceMEASUREMENT SAMPLE
How Oak Grove to Sullivan Square was measured
The Oak Grove to Sullivan Square estimate uses 3,430 completed direct-trip stop-timestamp pairs matched to the schedule active for each observed train.
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 Oak Grove
Trips related to Oak Grove to Sullivan Square
The Oak Grove to Sullivan Square record is accompanied by 6 other measured direct rides beginning at Oak Grove, each with a published median duration.