Morning rush
29 min 616 trips · 85% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Stony BrooktoOak Grove
Orange Line
A direct train took 30 minutes on a typical trip. On a slower-than-usual trip, allow up to 33 minutes.
Typical30 min50th percentile
Slower trip33 min90th percentile
Scheduled31 minmedian timetable
On pace88%within 2 min of schedule
THE SHORT ANSWER
How long does Stony Brook to Oak Grove take?
Based on 2,794 direct trips between 2026-08-17 and 2026-09-15, the median observed ride was 30 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 33 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
Morning rush produced the fastest typical result in this window; Midday was slowest. Differences can change as the rolling dataset updates.
Midday
30 min 636 trips · 87% on paceEvening rush
30 min 656 trips · 90% on paceOff-peak
29 min 886 trips · 89% 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 Stony Brook