Morning rush
21 min 634 trips · 88% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Back of the HilltoArlington
Green Line
A direct MBTA train from Back of the Hill to Arlington took a median 21 minutes across 3,475 observed trips; 90% of measured rides finished within approximately 25 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical21 min50th percentile
Slower trip25 min90th percentile
Scheduled22 minmedian timetable
On pace80%within 2 min of schedule
THE SHORT ANSWER
How long does Back of the Hill to Arlington take?
The median completed ride from Back of the Hill to Arlington was 21 minutes; the published schedule’s median was 22 minutes.
Based on 3,475 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 21 minutes. That was within 1 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 25 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Back of the Hill to Arlington times by daypart
Off-peak produced the fastest median for Back of the Hill to Arlington; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
22 min 862 trips · 78% on paceEvening rush
23 min 668 trips · 66% on paceOff-peak
19 min 1,311 trips · 84% on paceMEASUREMENT SAMPLE
How Back of the Hill to Arlington was measured
The Back of the Hill to Arlington estimate uses 3,475 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 Back of the Hill
Trips related to Back of the Hill to Arlington
The Back of the Hill to Arlington record is accompanied by 6 other measured direct rides beginning at Back of the Hill, each with a published median duration.