Morning rush
4.2 min 592 trips · 99% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
JFK/UMasstoFields Corner
Red Line
A direct MBTA train from JFK/UMass to Fields Corner took a median 4.2 minutes across 3,144 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
Scheduled5.2 minmedian timetable
On pace98%within 2 min of schedule
THE SHORT ANSWER
How long does JFK/UMass to Fields Corner take?
The median completed ride from JFK/UMass to Fields Corner was 4.2 minutes; the published schedule’s median was 5.2 minutes.
Based on 3,144 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 4.2 minutes. That was within 1 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
JFK/UMass to Fields Corner times by daypart
Evening rush produced the fastest median for JFK/UMass to Fields Corner; Off-peak produced the slowest.
Differences can change as the rolling dataset updates.
Midday
4.2 min 856 trips · 96% on paceEvening rush
4.2 min 669 trips · 98% on paceOff-peak
4.2 min 1,027 trips · 99% on paceMEASUREMENT SAMPLE
How JFK/UMass to Fields Corner was measured
The JFK/UMass to Fields Corner estimate uses 3,144 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 Fields Corner
The JFK/UMass to Fields Corner record is accompanied by 6 other measured direct rides beginning at JFK/UMass, each with a published median duration.