Morning rush
43 min 551 trips · 78% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
LechmeretoChestnut Hill
Green Line
A direct MBTA train from Lechmere to Chestnut Hill took a median 44 minutes across 3,191 observed trips; 90% of measured rides finished within approximately 51 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical44 min50th percentile
Slower trip51 min90th percentile
Scheduled44 minmedian timetable
On pace70%within 2 min of schedule
THE SHORT ANSWER
How long does Lechmere to Chestnut Hill take?
The median completed ride from Lechmere to Chestnut Hill was 44 minutes; the published schedule’s median was 44 minutes.
Based on 3,191 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 44 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 51 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Lechmere to Chestnut Hill times by daypart
Off-peak produced the fastest median for Lechmere to Chestnut Hill; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
44 min 869 trips · 65% on paceEvening rush
46 min 649 trips · 68% on paceOff-peak
42 min 1,122 trips · 71% on paceMEASUREMENT SAMPLE
How Lechmere to Chestnut Hill was measured
The Lechmere to Chestnut Hill estimate uses 3,191 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 Lechmere
Trips related to Lechmere to Chestnut Hill
The Lechmere to Chestnut Hill record is accompanied by 6 other measured direct rides beginning at Lechmere, each with a published median duration.