Morning rush
29 min 585 trips · 92% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Oak GrovetoStony Brook
Orange Line
A direct MBTA train from Oak Grove to Stony Brook took a median 29 minutes across 2,607 observed trips; 90% of measured rides finished within approximately 31 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical29 min50th percentile
Slower trip31 min90th percentile
Scheduled29 minmedian timetable
On pace88%within 2 min of schedule
THE SHORT ANSWER
How long does Oak Grove to Stony Brook take?
The median completed ride from Oak Grove to Stony Brook was 29 minutes; the published schedule’s median was 29 minutes.
Based on 2,607 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 29 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 31 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Oak Grove to Stony Brook times by daypart
Off-peak produced the fastest median for Oak Grove to Stony Brook; Morning rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
29 min 587 trips · 84% on paceEvening rush
29 min 603 trips · 87% on paceOff-peak
28 min 832 trips · 89% on paceMEASUREMENT SAMPLE
How Oak Grove to Stony Brook was measured
The Oak Grove to Stony Brook estimate uses 2,607 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 Stony Brook
The Oak Grove to Stony Brook record is accompanied by 6 other measured direct rides beginning at Oak Grove, each with a published median duration.