Morning rush
11 min 846 trips · 98% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Back BaytoForest Hills
A direct MBTA train from Back Bay to Forest Hills took a median 11 minutes across 4,132 observed trips; 90% of measured rides finished within approximately 12 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
THE SHORT ANSWER
How long does Back Bay to Forest Hills take?
The median completed ride from Back Bay to Forest Hills was 11 minutes; the published schedule’s median was 12 minutes.
Based on 4,132 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 11 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 12 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Back Bay to Forest Hills times by daypart
Evening rush produced the fastest median for Back Bay to Forest Hills; Off-peak produced the slowest.
Differences can change as the rolling dataset updates.
Midday
11 min 920 trips · 94% on paceEvening rush
11 min 796 trips · 99% on paceOff-peak
11 min 1,570 trips · 99% on paceMEASUREMENT SAMPLE
How Back Bay to Forest Hills was measured
The Back Bay to Forest Hills estimate uses 4,132 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 Back Bay
Trips related to Back Bay to Forest Hills
The Back Bay to Forest Hills record is accompanied by 6 other measured direct rides beginning at Back Bay, each with a published median duration.