Morning rush
41 min 560 trips · 82% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Chestnut HilltoScience Park/West End
Green Line
A direct train took 42 minutes on a typical trip. On a slower-than-usual trip, allow up to 49 minutes.
Typical42 min50th percentile
Slower trip49 min90th percentile
Scheduled43 minmedian timetable
On pace73%within 2 min of schedule
THE SHORT ANSWER
How long does Chestnut Hill to Science Park/West End take?
Based on 3,111 direct trips between 2026-08-17 and 2026-09-15, 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 49 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Time-of-day breakdown
Off-peak produced the fastest typical result in this window; Evening rush was slowest. Differences can change as the rolling dataset updates.
Midday
42 min 755 trips · 74% on paceEvening rush
44 min 647 trips · 59% on paceOff-peak
40 min 1,149 trips · 76% on paceHOW TO READ THIS
Measured, not promised.
TransitMeter pairs vehicle stop timestamps with the schedule active for each trip. 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