Morning rush
21 min 715 trips · 87% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Quincy AdamstoSouth Station
Red Line
A direct MBTA train from Quincy Adams to South Station took a median 21 minutes across 3,118 observed trips; 90% of measured rides finished within approximately 25 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical21 min50th percentile
Slower trip25 min90th percentile
Scheduled22 minmedian timetable
On pace80%within 2 min of schedule
THE SHORT ANSWER
How long does Quincy Adams to South Station take?
The median completed ride from Quincy Adams to South Station was 21 minutes; the published schedule’s median was 22 minutes.
Based on 3,118 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 21 minutes. That was within 1 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 25 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Quincy Adams to South Station times by daypart
Off-peak produced the fastest median for Quincy Adams to South Station; Midday produced the slowest.
Differences can change as the rolling dataset updates.
Midday
22 min 619 trips · 78% on paceEvening rush
22 min 680 trips · 77% on paceOff-peak
21 min 1,104 trips · 80% on paceMEASUREMENT SAMPLE
How Quincy Adams to South Station was measured
The Quincy Adams to South Station estimate uses 3,118 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 Quincy Adams
Trips related to Quincy Adams to South Station
The Quincy Adams to South Station record is accompanied by 6 other measured direct rides beginning at Quincy Adams, each with a published median duration.