Morning rush
25 min 634 trips · 94% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
ArlingtontoBall Square
Green Line
A direct MBTA train from Arlington to Ball Square took a median 25 minutes across 3,519 observed trips; 90% of measured rides finished within approximately 30 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical25 min50th percentile
Slower trip30 min90th percentile
Scheduled28 minmedian timetable
On pace90%within 2 min of schedule
THE SHORT ANSWER
How long does Arlington to Ball Square take?
The median completed ride from Arlington to Ball Square was 25 minutes; the published schedule’s median was 28 minutes.
Based on 3,519 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 25 minutes. That was within 3 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 30 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Arlington to Ball Square times by daypart
Off-peak produced the fastest median for Arlington to Ball Square; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
25 min 875 trips · 90% on paceEvening rush
27 min 658 trips · 79% on paceOff-peak
24 min 1,352 trips · 92% on paceMEASUREMENT SAMPLE
How Arlington to Ball Square was measured
The Arlington to Ball Square estimate uses 3,519 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 Ball Square
The Arlington to Ball Square record is accompanied by 6 other measured direct rides beginning at Arlington, each with a published median duration.