OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

East SomervilletoBoylston

Green Line

A direct MBTA train from East Somerville to Boylston took a median 19 minutes across 3,597 observed trips; 90% of measured rides finished within approximately 23 minutes.

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

Typical19 min50th percentile
Slower trip23 min90th percentile
Scheduled20 minmedian timetable
On pace80%within 2 min of schedule

THE SHORT ANSWER

How long does East Somerville to Boylston take?

The median completed ride from East Somerville to Boylston was 19 minutes; the published schedule’s median was 20 minutes.

Based on 3,597 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 19 minutes. That was within 1.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 23 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

East Somerville to Boylston times by daypart

Off-peak produced the fastest median for East Somerville to Boylston; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

19 min 733 trips · 84% on pace

Midday

19 min 904 trips · 77% on pace

Evening rush

20 min 731 trips · 73% on pace

Off-peak

18 min 1,229 trips · 83% on pace

MEASUREMENT SAMPLE

How East Somerville to Boylston was measured

The East Somerville to Boylston estimate uses 3,597 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 →