OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

AshmonttoAlewife

Red Line

A direct MBTA train from Ashmont to Alewife took a median 39 minutes across 3,073 observed trips; 90% of measured rides finished within approximately 46 minutes.

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

Typical39 min50th percentile
Slower trip46 min90th percentile
Scheduled37 minmedian timetable
On pace51%within 2 min of schedule

THE SHORT ANSWER

How long does Ashmont to Alewife take?

The median completed ride from Ashmont to Alewife was 39 minutes; the published schedule’s median was 37 minutes.

Based on 3,073 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 39 minutes. That was 2 minutes longer than the published schedule.

Nine out of ten measured trips finished within approximately 46 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Ashmont to Alewife times by daypart

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

Differences can change as the rolling dataset updates.

Morning rush

39 min 708 trips · 51% on pace

Midday

39 min 669 trips · 49% on pace

Evening rush

40 min 680 trips · 49% on pace

Off-peak

38 min 1,016 trips · 52% on pace

MEASUREMENT SAMPLE

How Ashmont to Alewife was measured

The Ashmont to Alewife estimate uses 3,073 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 →