Morning rush
22 min 1,416 trips · 84% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
South StationtoAlewife
Red Line
A direct MBTA train from South Station to Alewife took a median 22 minutes across 6,210 observed trips; 90% of measured rides finished within approximately 26 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical22 min50th percentile
Slower trip26 min90th percentile
Scheduled22 minmedian timetable
On pace81%within 2 min of schedule
THE SHORT ANSWER
How long does South Station to Alewife take?
The median completed ride from South Station to Alewife was 22 minutes; the published schedule’s median was 22 minutes.
Based on 6,210 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 22 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 26 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
South Station to Alewife times by daypart
Off-peak produced the fastest median for South Station to Alewife; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
22 min 1,299 trips · 81% on paceEvening rush
22 min 1,368 trips · 80% on paceOff-peak
21 min 2,127 trips · 80% on paceMEASUREMENT SAMPLE
How South Station to Alewife was measured
The South Station to Alewife estimate uses 6,210 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 South Station
Trips related to South Station to Alewife
The South Station to Alewife record is accompanied by 6 other measured direct rides beginning at South Station, each with a published median duration.