Morning rush
30 min 644 trips · 83% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
PortertoShawmut
A direct MBTA train from Porter to Shawmut took a median 30 minutes across 3,137 observed trips; 90% of measured rides finished within approximately 35 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
THE SHORT ANSWER
How long does Porter to Shawmut take?
The median completed ride from Porter to Shawmut was 30 minutes; the published schedule’s median was 30 minutes.
Based on 3,137 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 30 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 35 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Porter to Shawmut times by daypart
Off-peak produced the fastest median for Porter to Shawmut; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
30 min 845 trips · 78% on paceEvening rush
31 min 675 trips · 78% on paceOff-peak
29 min 973 trips · 80% on paceMEASUREMENT SAMPLE
How Porter to Shawmut was measured
The Porter to Shawmut estimate uses 3,137 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 Porter
Trips related to Porter to Shawmut
The Porter to Shawmut record is accompanied by 6 other measured direct rides beginning at Porter, each with a published median duration.