Morning rush
27 min 538 trips · 89% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
BoylstontoChestnut Hill
Green Line
A direct MBTA train from Boylston to Chestnut Hill took a median 28 minutes across 3,313 observed trips; 90% of measured rides finished within approximately 32 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical28 min50th percentile
Slower trip32 min90th percentile
Scheduled29 minmedian timetable
On pace84%within 2 min of schedule
THE SHORT ANSWER
How long does Boylston to Chestnut Hill take?
The median completed ride from Boylston to Chestnut Hill was 28 minutes; the published schedule’s median was 29 minutes.
Based on 3,313 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 28 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 32 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 times by daypart
Morning rush produced the fastest median for Boylston to Chestnut Hill; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
28 min 883 trips · 83% on paceEvening rush
29 min 719 trips · 87% on paceOff-peak
27 min 1,173 trips · 81% on paceMEASUREMENT SAMPLE
How Boylston to Chestnut Hill was measured
The Boylston to Chestnut Hill estimate uses 3,313 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
The Boylston to Chestnut Hill record is accompanied by 6 other measured direct rides beginning at Boylston, each with a published median duration.