Morning rush
11 min 655 trips · 74% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
South StreettoAllston Street
Green Line
A direct MBTA train from South Street to Allston Street took a median 11 minutes across 3,302 observed trips; 90% of measured rides finished within approximately 13 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical11 min50th percentile
Slower trip13 min90th percentile
Scheduled10 minmedian timetable
On pace79%within 2 min of schedule
THE SHORT ANSWER
How long does South Street to Allston Street take?
The median completed ride from South Street to Allston Street was 11 minutes; the published schedule’s median was 10 minutes.
Based on 3,302 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 11 minutes. That was 0.5 minutes longer than the published schedule.
Nine out of ten measured trips finished within approximately 13 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
South Street to Allston Street times by daypart
Off-peak produced the fastest median for South Street to Allston Street; Morning rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
11 min 905 trips · 83% on paceEvening rush
11 min 639 trips · 83% on paceOff-peak
10 min 1,103 trips · 78% on paceMEASUREMENT SAMPLE
How South Street to Allston Street was measured
The South Street to Allston Street estimate uses 3,302 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 South Street
Trips related to South Street to Allston Street
The South Street to Allston Street record is accompanied by 6 other measured direct rides beginning at South Street, each with a published median duration.