Morning rush
22 min 1,333 trips · 86% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
PortertoJFK/UMass
Red Line
A direct MBTA train from Porter to JFK/UMass took a median 23 minutes across 6,277 observed trips; 90% of measured rides finished within approximately 26 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical23 min50th percentile
Slower trip26 min90th percentile
Scheduled23 minmedian timetable
On pace82%within 2 min of schedule
THE SHORT ANSWER
How long does Porter to JFK/UMass take?
The median completed ride from Porter to JFK/UMass was 23 minutes; the published schedule’s median was 23 minutes.
Based on 6,277 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 23 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 26 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Porter to JFK/UMass times by daypart
Morning rush produced the fastest median for Porter to JFK/UMass; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
23 min 1,630 trips · 85% on paceEvening rush
24 min 1,357 trips · 78% on paceOff-peak
22 min 1,957 trips · 79% on paceMEASUREMENT SAMPLE
How Porter to JFK/UMass was measured
The Porter to JFK/UMass estimate uses 6,277 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 JFK/UMass
The Porter to JFK/UMass record is accompanied by 6 other measured direct rides beginning at Porter, each with a published median duration.