Morning rush
32 min 643 trips · 92% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
ArlingtontoChestnut Hill Avenue
Green Line
A direct MBTA train from Arlington to Chestnut Hill Avenue took a median 34 minutes across 3,337 observed trips; 90% of measured rides finished within approximately 39 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical34 min50th percentile
Slower trip39 min90th percentile
Scheduled36 minmedian timetable
On pace83%within 2 min of schedule
THE SHORT ANSWER
How long does Arlington to Chestnut Hill Avenue take?
The median completed ride from Arlington to Chestnut Hill Avenue was 34 minutes; the published schedule’s median was 36 minutes.
Based on 3,337 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 34 minutes. That was within 2.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 39 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Arlington to Chestnut Hill Avenue times by daypart
Morning rush produced the fastest median for Arlington to Chestnut Hill Avenue; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
34 min 903 trips · 83% on paceEvening rush
36 min 607 trips · 78% on paceOff-peak
34 min 1,184 trips · 82% on paceMEASUREMENT SAMPLE
How Arlington to Chestnut Hill Avenue was measured
The Arlington to Chestnut Hill Avenue estimate uses 3,337 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 Chestnut Hill Avenue
The Arlington to Chestnut Hill Avenue record is accompanied by 6 other measured direct rides beginning at Arlington, each with a published median duration.