Morning rush
36 min 687 trips · 85% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
PortertoQuincy Adams
Red Line
A direct MBTA train from Porter to Quincy Adams took a median 37 minutes across 3,132 observed trips; 90% of measured rides finished within approximately 43 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical37 min50th percentile
Slower trip43 min90th percentile
Scheduled37 minmedian timetable
On pace75%within 2 min of schedule
THE SHORT ANSWER
How long does Porter to Quincy Adams take?
The median completed ride from Porter to Quincy Adams was 37 minutes; the published schedule’s median was 37 minutes.
Based on 3,132 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 37 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 43 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Porter to Quincy Adams times by daypart
Morning rush produced the fastest median for Porter to Quincy Adams; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
37 min 783 trips · 70% on paceEvening rush
38 min 681 trips · 69% on paceOff-peak
36 min 981 trips · 76% on paceMEASUREMENT SAMPLE
How Porter to Quincy Adams was measured
The Porter to Quincy Adams estimate uses 3,132 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 Quincy Adams
The Porter to Quincy Adams record is accompanied by 6 other measured direct rides beginning at Porter, each with a published median duration.