Morning rush
32 min 629 trips · 93% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
ArlingtontoChestnut Hill Avenue
Green Line
A direct train took 34 minutes on a typical trip. On a slower-than-usual trip, allow up to 39 minutes.
Typical34 min50th percentile
Slower trip39 min90th percentile
Scheduled36 minmedian timetable
On pace84%within 2 min of schedule
THE SHORT ANSWER
How long does Arlington to Chestnut Hill Avenue take?
Based on 3,287 direct trips between 2026-08-17 and 2026-09-15, 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
Time-of-day breakdown
Morning rush produced the fastest typical result in this window; Evening rush was slowest. Differences can change as the rolling dataset updates.
Midday
34 min 895 trips · 83% on paceEvening rush
36 min 587 trips · 78% on paceOff-peak
34 min 1,176 trips · 82% on paceHOW TO READ THIS
Measured, not promised.
TransitMeter pairs vehicle stop timestamps with the schedule active for each trip. 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