Morning rush
22 min 689 trips · 88% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Summit AvenuetoBoylston
Green Line
A direct MBTA train from Summit Avenue to Boylston took a median 23 minutes across 3,494 observed trips; 90% of measured rides finished within approximately 27 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical23 min50th percentile
Slower trip27 min90th percentile
Scheduled23 minmedian timetable
On pace80%within 2 min of schedule
THE SHORT ANSWER
How long does Summit Avenue to Boylston take?
The median completed ride from Summit Avenue to Boylston was 23 minutes; the published schedule’s median was 23 minutes.
Based on 3,494 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 23 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 27 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Summit Avenue to Boylston times by daypart
Morning rush produced the fastest median for Summit Avenue to Boylston; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
23 min 940 trips · 80% on paceEvening rush
24 min 724 trips · 80% on paceOff-peak
22 min 1,141 trips · 74% on paceMEASUREMENT SAMPLE
How Summit Avenue to Boylston was measured
The Summit Avenue to Boylston estimate uses 3,494 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 Summit Avenue
Trips related to Summit Avenue to Boylston
The Summit Avenue to Boylston record is accompanied by 6 other measured direct rides beginning at Summit Avenue, each with a published median duration.