Morning rush
41 min 554 trips · 81% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Science Park/West EndtoChestnut Hill
Green Line
A direct MBTA train from Science Park/West End to Chestnut Hill took a median 41 minutes across 3,174 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
Typical41 min50th percentile
Slower trip48 min90th percentile
Scheduled42 minmedian timetable
On pace74%within 2 min of schedule
THE SHORT ANSWER
How long does Science Park/West End to Chestnut Hill take?
The median completed ride from Science Park/West End to Chestnut Hill was 41 minutes; the published schedule’s median was 42 minutes.
Based on 3,174 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 41 minutes. That was within 1 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
Science Park/West End to Chestnut Hill times by daypart
Off-peak produced the fastest median for Science Park/West End to Chestnut Hill; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
42 min 844 trips · 70% on paceEvening rush
44 min 662 trips · 73% on paceOff-peak
40 min 1,114 trips · 74% on paceMEASUREMENT SAMPLE
How Science Park/West End to Chestnut Hill was measured
The Science Park/West End to Chestnut Hill estimate uses 3,174 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 Science Park/West End
Trips related to Science Park/West End to Chestnut Hill
The Science Park/West End to Chestnut Hill record is accompanied by 6 other measured direct rides beginning at Science Park/West End, each with a published median duration.