OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

ButlertoAshmont

Mattapan Line

A direct MBTA train from Butler to Ashmont took a median 2.8 minutes across 3,279 observed trips; 90% of measured rides finished within approximately 3.2 minutes.

Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only

Typical2.8 min50th percentile
Slower trip3.2 min90th percentile
Scheduled4.2 minmedian timetable
On pace98%within 2 min of schedule

THE SHORT ANSWER

How long does Butler to Ashmont take?

The median completed ride from Butler to Ashmont was 2.8 minutes; the published schedule’s median was 4.2 minutes.

Based on 3,279 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 2.8 minutes. That was within 1.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 3.2 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Butler to Ashmont times by daypart

Evening rush produced the fastest median for Butler to Ashmont; Off-peak produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

2.8 min 709 trips · 97% on pace

Midday

2.8 min 820 trips · 99% on pace

Evening rush

2.8 min 815 trips · 98% on pace

Off-peak

2.8 min 935 trips · 99% on pace

MEASUREMENT SAMPLE

How Butler to Ashmont was measured

The Butler to Ashmont estimate uses 3,279 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 →