Morning rush
19 min 648 trips · 94% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
ArlingtontoEast Somerville
Green Line
A direct MBTA train from Arlington to East Somerville took a median 20 minutes across 3,599 observed trips; 90% of measured rides finished within approximately 24 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical20 min50th percentile
Slower trip24 min90th percentile
Scheduled22 minmedian timetable
On pace90%within 2 min of schedule
THE SHORT ANSWER
How long does Arlington to East Somerville take?
The median completed ride from Arlington to East Somerville was 20 minutes; the published schedule’s median was 22 minutes.
Based on 3,599 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 20 minutes. That was within 2.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 24 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Arlington to East Somerville times by daypart
Off-peak produced the fastest median for Arlington to East Somerville; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
20 min 895 trips · 90% on paceEvening rush
21 min 671 trips · 80% on paceOff-peak
19 min 1,385 trips · 92% on paceMEASUREMENT SAMPLE
How Arlington to East Somerville was measured
The Arlington to East Somerville estimate uses 3,599 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 Arlington
Trips related to Arlington to East Somerville
The Arlington to East Somerville record is accompanied by 6 other measured direct rides beginning at Arlington, each with a published median duration.