Morning rush
20 min 696 trips · 89% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Summit AvenuetoArlington
Green Line
A direct MBTA train from Summit Avenue to Arlington took a median 20 minutes across 3,512 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
Scheduled20 minmedian timetable
On pace82%within 2 min of schedule
THE SHORT ANSWER
How long does Summit Avenue to Arlington take?
The median completed ride from Summit Avenue to Arlington was 20 minutes; the published schedule’s median was 20 minutes.
Based on 3,512 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 20 minutes. That was within 0.5 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
Summit Avenue to Arlington times by daypart
Off-peak produced the fastest median for Summit Avenue to Arlington; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
20 min 943 trips · 81% on paceEvening rush
21 min 728 trips · 85% on paceOff-peak
19 min 1,145 trips · 76% on paceMEASUREMENT SAMPLE
How Summit Avenue to Arlington was measured
The Summit Avenue to Arlington estimate uses 3,512 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 Summit Avenue
Trips related to Summit Avenue to Arlington
The Summit Avenue to Arlington record is accompanied by 6 other measured direct rides beginning at Summit Avenue, each with a published median duration.