Morning rush
26 min 579 trips · 84% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Chestnut HilltoArlington
Green Line
A direct MBTA train from Chestnut Hill to Arlington took a median 26 minutes across 3,246 observed trips; 90% of measured rides finished within approximately 31 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical26 min50th percentile
Slower trip31 min90th percentile
Scheduled27 minmedian timetable
On pace80%within 2 min of schedule
THE SHORT ANSWER
How long does Chestnut Hill to Arlington take?
The median completed ride from Chestnut Hill to Arlington was 26 minutes; the published schedule’s median was 27 minutes.
Based on 3,246 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 26 minutes. That was within 1 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 31 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Chestnut Hill to Arlington times by daypart
Off-peak produced the fastest median for Chestnut Hill to Arlington; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
27 min 780 trips · 78% on paceEvening rush
28 min 682 trips · 72% on paceOff-peak
25 min 1,205 trips · 83% on paceMEASUREMENT SAMPLE
How Chestnut Hill to Arlington was measured
The Chestnut Hill to Arlington estimate uses 3,246 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 Chestnut Hill
Trips related to Chestnut Hill to Arlington
The Chestnut Hill to Arlington record is accompanied by 6 other measured direct rides beginning at Chestnut Hill, each with a published median duration.