Morning rush
41 min 558 trips · 82% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Chestnut HilltoScience Park/West End
Green Line
A direct MBTA train from Chestnut Hill to Science Park/West End took a median 42 minutes across 3,151 observed trips; 90% of measured rides finished within approximately 48 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical42 min50th percentile
Slower trip48 min90th percentile
Scheduled43 minmedian timetable
On pace74%within 2 min of schedule
THE SHORT ANSWER
How long does Chestnut Hill to Science Park/West End take?
The median completed ride from Chestnut Hill to Science Park/West End was 42 minutes; the published schedule’s median was 43 minutes.
Based on 3,151 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 42 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 48 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Chestnut Hill to Science Park/West End times by daypart
Off-peak produced the fastest median for Chestnut Hill to Science Park/West End; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
42 min 762 trips · 75% on paceEvening rush
44 min 663 trips · 60% on paceOff-peak
40 min 1,168 trips · 78% on paceMEASUREMENT SAMPLE
How Chestnut Hill to Science Park/West End was measured
The Chestnut Hill to Science Park/West End estimate uses 3,151 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 Science Park/West End
The Chestnut Hill to Science Park/West End record is accompanied by 6 other measured direct rides beginning at Chestnut Hill, each with a published median duration.