Morning rush
8.2 min 593 trips · 97% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
JFK/UMasstoAshmont
Red Line
A direct MBTA train from JFK/UMass to Ashmont took a median 8.8 minutes across 3,136 observed trips; 90% of measured rides finished within approximately 11 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical8.8 min50th percentile
Slower trip11 min90th percentile
Scheduled10 minmedian timetable
On pace94%within 2 min of schedule
THE SHORT ANSWER
How long does JFK/UMass to Ashmont take?
The median completed ride from JFK/UMass to Ashmont was 8.8 minutes; the published schedule’s median was 10 minutes.
Based on 3,136 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 8.8 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 11 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
JFK/UMass to Ashmont times by daypart
Morning rush produced the fastest median for JFK/UMass to Ashmont; Off-peak produced the slowest.
Differences can change as the rolling dataset updates.
Midday
8.8 min 853 trips · 90% on paceEvening rush
8.8 min 666 trips · 95% on paceOff-peak
8.8 min 1,024 trips · 95% on paceMEASUREMENT SAMPLE
How JFK/UMass to Ashmont was measured
The JFK/UMass to Ashmont estimate uses 3,136 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 JFK/UMass
Trips related to JFK/UMass to Ashmont
The JFK/UMass to Ashmont record is accompanied by 6 other measured direct rides beginning at JFK/UMass, each with a published median duration.