Morning rush
31 min 638 trips · 94% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
CopleytoSouth Street
Green Line
A direct MBTA train from Copley to South Street took a median 34 minutes across 3,342 observed trips; 90% of measured rides finished within approximately 38 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical34 min50th percentile
Slower trip38 min90th percentile
Scheduled36 minmedian timetable
On pace87%within 2 min of schedule
THE SHORT ANSWER
How long does Copley to South Street take?
The median completed ride from Copley to South Street was 34 minutes; the published schedule’s median was 36 minutes.
Based on 3,342 direct trips between 2026-08-20 and 2026-09-18, 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 38 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Copley to South Street times by daypart
Morning rush produced the fastest median for Copley to South Street; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
34 min 907 trips · 87% on paceEvening rush
35 min 607 trips · 83% on paceOff-peak
33 min 1,190 trips · 85% on paceMEASUREMENT SAMPLE
How Copley to South Street was measured
The Copley to South Street estimate uses 3,342 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 Copley
Trips related to Copley to South Street
The Copley to South Street record is accompanied by 6 other measured direct rides beginning at Copley, each with a published median duration.