Morning rush
20 min 1,346 trips · 84% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
AlewifetoSouth Station
Red Line
A direct MBTA train from Alewife to South Station took a median 20 minutes across 6,255 observed trips; 90% of measured rides finished within approximately 23 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical20 min50th percentile
Slower trip23 min90th percentile
Scheduled20 minmedian timetable
On pace84%within 2 min of schedule
THE SHORT ANSWER
How long does Alewife to South Station take?
The median completed ride from Alewife to South Station was 20 minutes; the published schedule’s median was 20 minutes.
Based on 6,255 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 20 minutes. That was within 0 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 23 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Alewife to South Station times by daypart
Off-peak produced the fastest median for Alewife to South Station; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
20 min 1,626 trips · 85% on paceEvening rush
21 min 1,357 trips · 80% on paceOff-peak
20 min 1,926 trips · 85% on paceMEASUREMENT SAMPLE
How Alewife to South Station was measured
The Alewife to South Station estimate uses 6,255 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 Alewife
Trips related to Alewife to South Station
The Alewife to South Station record is accompanied by 6 other measured direct rides beginning at Alewife, each with a published median duration.