Morning rush
17 min 644 trips · 92% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
ArlingtontoSummit Avenue
Green Line
A direct MBTA train from Arlington to Summit Avenue took a median 18 minutes across 3,528 observed trips; 90% of measured rides finished within approximately 21 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical18 min50th percentile
Slower trip21 min90th percentile
Scheduled19 minmedian timetable
On pace87%within 2 min of schedule
THE SHORT ANSWER
How long does Arlington to Summit Avenue take?
The median completed ride from Arlington to Summit Avenue was 18 minutes; the published schedule’s median was 19 minutes.
Based on 3,528 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 18 minutes. That was within 1 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 21 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Arlington to Summit Avenue times by daypart
Morning rush produced the fastest median for Arlington to Summit Avenue; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
18 min 888 trips · 90% on paceEvening rush
19 min 711 trips · 87% on paceOff-peak
18 min 1,285 trips · 84% on paceMEASUREMENT SAMPLE
How Arlington to Summit Avenue was measured
The Arlington to Summit Avenue estimate uses 3,528 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 Summit Avenue
The Arlington to Summit Avenue record is accompanied by 6 other measured direct rides beginning at Arlington, each with a published median duration.