Morning rush
17 min 658 trips · 90% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
JFK/UMasstoBraintree
Red Line
A direct MBTA train from JFK/UMass to Braintree took a median 18 minutes across 3,132 observed trips; 90% of measured rides finished within approximately 22 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical18 min50th percentile
Slower trip22 min90th percentile
Scheduled19 minmedian timetable
On pace86%within 2 min of schedule
THE SHORT ANSWER
How long does JFK/UMass to Braintree take?
The median completed ride from JFK/UMass to Braintree was 18 minutes; the published schedule’s median was 19 minutes.
Based on 3,132 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 18 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 22 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
JFK/UMass to Braintree times by daypart
Morning rush produced the fastest median for JFK/UMass to Braintree; Midday produced the slowest.
Differences can change as the rolling dataset updates.
Midday
18 min 778 trips · 76% on paceEvening rush
18 min 682 trips · 89% on paceOff-peak
18 min 1,014 trips · 89% on paceMEASUREMENT SAMPLE
How JFK/UMass to Braintree was measured
The JFK/UMass to Braintree 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 JFK/UMass
Trips related to JFK/UMass to Braintree
The JFK/UMass to Braintree record is accompanied by 6 other measured direct rides beginning at JFK/UMass, each with a published median duration.