Morning rush
15 min 1,417 trips · 96% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
South StationtoPorter
Red Line
A direct MBTA train from South Station to Porter took a median 15 minutes across 6,209 observed trips; 90% of measured rides finished within approximately 18 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical15 min50th percentile
Slower trip18 min90th percentile
Scheduled17 minmedian timetable
On pace94%within 2 min of schedule
THE SHORT ANSWER
How long does South Station to Porter take?
The median completed ride from South Station to Porter was 15 minutes; the published schedule’s median was 17 minutes.
Based on 6,209 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 15 minutes. That was within 2 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 18 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
South Station to Porter times by daypart
Off-peak produced the fastest median for South Station to Porter; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
15 min 1,297 trips · 94% on paceEvening rush
16 min 1,368 trips · 93% on paceOff-peak
15 min 2,127 trips · 93% on paceMEASUREMENT SAMPLE
How South Station to Porter was measured
The South Station to Porter estimate uses 6,209 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 Station
Trips related to South Station to Porter
The South Station to Porter record is accompanied by 6 other measured direct rides beginning at South Station, each with a published median duration.