Morning rush
43 min 563 trips · 82% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Chestnut HilltoLechmere
Green Line
A direct MBTA train from Chestnut Hill to Lechmere took a median 43 minutes across 3,160 observed trips; 90% of measured rides finished within approximately 50 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical43 min50th percentile
Slower trip50 min90th percentile
Scheduled45 minmedian timetable
On pace75%within 2 min of schedule
THE SHORT ANSWER
How long does Chestnut Hill to Lechmere take?
The median completed ride from Chestnut Hill to Lechmere was 43 minutes; the published schedule’s median was 45 minutes.
Based on 3,160 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 43 minutes. That was within 2 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 50 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Chestnut Hill to Lechmere times by daypart
Off-peak produced the fastest median for Chestnut Hill to Lechmere; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
44 min 764 trips · 76% on paceEvening rush
46 min 662 trips · 61% on paceOff-peak
42 min 1,171 trips · 79% on paceMEASUREMENT SAMPLE
How Chestnut Hill to Lechmere was measured
The Chestnut Hill to Lechmere estimate uses 3,160 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 Chestnut Hill
Trips related to Chestnut Hill to Lechmere
The Chestnut Hill to Lechmere record is accompanied by 6 other measured direct rides beginning at Chestnut Hill, each with a published median duration.