Morning rush
34 min 642 trips · 88% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
BoylstontoChestnut Hill Avenue
Green Line
A direct MBTA train from Boylston to Chestnut Hill Avenue took a median 36 minutes across 3,342 observed trips; 90% of measured rides finished within approximately 42 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical36 min50th percentile
Slower trip42 min90th percentile
Scheduled38 minmedian timetable
On pace82%within 2 min of schedule
THE SHORT ANSWER
How long does Boylston to Chestnut Hill Avenue take?
The median completed ride from Boylston to Chestnut Hill Avenue was 36 minutes; the published schedule’s median was 38 minutes.
Based on 3,342 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 36 minutes. That was within 2 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 42 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Boylston to Chestnut Hill Avenue times by daypart
Morning rush produced the fastest median for Boylston to Chestnut Hill Avenue; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
37 min 889 trips · 81% on paceEvening rush
39 min 627 trips · 79% on paceOff-peak
36 min 1,184 trips · 82% on paceMEASUREMENT SAMPLE
How Boylston to Chestnut Hill Avenue was measured
The Boylston to Chestnut Hill Avenue estimate uses 3,342 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 Boylston
Trips related to Boylston to Chestnut Hill Avenue
The Boylston to Chestnut Hill Avenue record is accompanied by 6 other measured direct rides beginning at Boylston, each with a published median duration.