Morning rush
40 min 553 trips · 75% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Union SquaretoBrookline Hills
Green Line
A direct MBTA train from Union Square to Brookline Hills took a median 40 minutes across 3,131 observed trips; 90% of measured rides finished within approximately 47 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical40 min50th percentile
Slower trip47 min90th percentile
Scheduled41 minmedian timetable
On pace67%within 2 min of schedule
THE SHORT ANSWER
How long does Union Square to Brookline Hills take?
The median completed ride from Union Square to Brookline Hills was 40 minutes; the published schedule’s median was 41 minutes.
Based on 3,131 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 40 minutes. That was within 1 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 47 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Union Square to Brookline Hills times by daypart
Off-peak produced the fastest median for Union Square to Brookline Hills; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
41 min 828 trips · 62% on paceEvening rush
43 min 674 trips · 63% on paceOff-peak
39 min 1,076 trips · 68% on paceMEASUREMENT SAMPLE
How Union Square to Brookline Hills was measured
The Union Square to Brookline Hills estimate uses 3,131 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 Union Square
Trips related to Union Square to Brookline Hills
The Union Square to Brookline Hills record is accompanied by 6 other measured direct rides beginning at Union Square, each with a published median duration.