Morning rush
3.2 min 729 trips · 99% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Saint Paul StreettoSaint Mary's Street
Green Line
A direct MBTA train from Saint Paul Street to Saint Mary's Street took a median 3.2 minutes across 3,668 observed trips; 90% of measured rides finished within approximately 3.8 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical3.2 min50th percentile
Slower trip3.8 min90th percentile
Scheduled5.2 minmedian timetable
On pace100%within 2 min of schedule
THE SHORT ANSWER
How long does Saint Paul Street to Saint Mary's Street take?
The median completed ride from Saint Paul Street to Saint Mary's Street was 3.2 minutes; the published schedule’s median was 5.2 minutes.
Based on 3,668 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 3.2 minutes. That was within 2 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 3.8 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Saint Paul Street to Saint Mary's Street times by daypart
Off-peak produced the fastest median for Saint Paul Street to Saint Mary's Street; Morning rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
3.2 min 990 trips · 100% on paceEvening rush
3.2 min 761 trips · 100% on paceOff-peak
2.8 min 1,188 trips · 100% on paceMEASUREMENT SAMPLE
How Saint Paul Street to Saint Mary's Street was measured
The Saint Paul Street to Saint Mary's Street estimate uses 3,668 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 Saint Paul Street
Trips related to Saint Paul Street to Saint Mary's Street
The Saint Paul Street to Saint Mary's Street record is accompanied by 6 other measured direct rides beginning at Saint Paul Street, each with a published median duration.