Morning rush
17 min 624 trips · 96% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
BoylstontoEast Somerville
Green Line
A direct MBTA train from Boylston to East Somerville took a median 17 minutes across 3,592 observed trips; 90% of measured rides finished within approximately 20 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical17 min50th percentile
Slower trip20 min90th percentile
Scheduled19 minmedian timetable
On pace92%within 2 min of schedule
THE SHORT ANSWER
How long does Boylston to East Somerville take?
The median completed ride from Boylston to East Somerville was 17 minutes; the published schedule’s median was 19 minutes.
Based on 3,592 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 17 minutes. That was within 2.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 20 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Boylston to East Somerville times by daypart
Off-peak produced the fastest median for Boylston to East Somerville; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
17 min 917 trips · 92% on paceEvening rush
18 min 671 trips · 85% on paceOff-peak
16 min 1,380 trips · 94% on paceMEASUREMENT SAMPLE
How Boylston to East Somerville was measured
The Boylston to East Somerville estimate uses 3,592 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 Boylston
Trips related to Boylston to East Somerville
The Boylston to East Somerville record is accompanied by 6 other measured direct rides beginning at Boylston, each with a published median duration.