Morning rush
16 min 710 trips · 70% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
AshmonttoSouth Station
Red Line
A direct MBTA train from Ashmont to South Station took a median 15 minutes across 3,090 observed trips; 90% of measured rides finished within approximately 20 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical15 min50th percentile
Slower trip20 min90th percentile
Scheduled15 minmedian timetable
On pace73%within 2 min of schedule
THE SHORT ANSWER
How long does Ashmont to South Station take?
The median completed ride from Ashmont to South Station was 15 minutes; the published schedule’s median was 15 minutes.
Based on 3,090 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 15 minutes. That was within 0 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 20 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Ashmont to South Station times by daypart
Off-peak produced the fastest median for Ashmont to South Station; Morning rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
16 min 670 trips · 69% on paceEvening rush
15 min 683 trips · 74% on paceOff-peak
15 min 1,027 trips · 77% on paceMEASUREMENT SAMPLE
How Ashmont to South Station was measured
The Ashmont to South Station estimate uses 3,090 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 Ashmont
Trips related to Ashmont to South Station
The Ashmont to South Station record is accompanied by 6 other measured direct rides beginning at Ashmont, each with a published median duration.