OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Chestnut HilltoBrookline Hills

Green Line

A direct MBTA train from Chestnut Hill to Brookline Hills took a median 7.8 minutes across 3,393 observed trips; 90% of measured rides finished within approximately 11 minutes.

Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only

Typical7.8 min50th percentile
Slower trip11 min90th percentile
Scheduled9.2 minmedian timetable
On pace93%within 2 min of schedule

THE SHORT ANSWER

How long does Chestnut Hill to Brookline Hills take?

The median completed ride from Chestnut Hill to Brookline Hills was 7.8 minutes; the published schedule’s median was 9.2 minutes.

Based on 3,393 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 7.8 minutes. That was within 1.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 11 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Chestnut Hill to Brookline Hills times by daypart

Evening rush produced the fastest median for Chestnut Hill to Brookline Hills; Off-peak produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

7.8 min 602 trips · 89% on pace

Midday

7.8 min 800 trips · 94% on pace

Evening rush

7.8 min 719 trips · 92% on pace

Off-peak

7.8 min 1,272 trips · 94% on pace

MEASUREMENT SAMPLE

How Chestnut Hill to Brookline Hills was measured

The Chestnut Hill to Brookline Hills estimate uses 3,393 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 →