Morning rush
4.2 min 1,352 trips · 99% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
AlewifetoPorter
Red Line
A direct MBTA train from Alewife to Porter took a median 4.2 minutes across 6,274 observed trips; 90% of measured rides finished within approximately 4.8 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical4.2 min50th percentile
Slower trip4.8 min90th percentile
Scheduled4.2 minmedian timetable
On pace98%within 2 min of schedule
THE SHORT ANSWER
How long does Alewife to Porter take?
The median completed ride from Alewife to Porter was 4.2 minutes; the published schedule’s median was 4.2 minutes.
Based on 6,274 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 4.2 minutes. That was within 0 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 4.8 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Alewife to Porter times by daypart
Evening rush produced the fastest median for Alewife to Porter; Off-peak produced the slowest.
Differences can change as the rolling dataset updates.
Midday
4.2 min 1,629 trips · 99% on paceEvening rush
4.2 min 1,359 trips · 98% on paceOff-peak
4.2 min 1,934 trips · 98% on paceMEASUREMENT SAMPLE
How Alewife to Porter was measured
The Alewife to Porter estimate uses 6,274 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 Alewife
Trips related to Alewife to Porter
The Alewife to Porter record is accompanied by 6 other measured direct rides beginning at Alewife, each with a published median duration.