Morning rush
5.8 min 728 trips · 99% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Coolidge CornertoSaint Mary's Street
Green Line
A direct MBTA train from Coolidge Corner to Saint Mary's Street took a median 5.2 minutes across 3,664 observed trips; 90% of measured rides finished within approximately 6.8 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical5.2 min50th percentile
Slower trip6.8 min90th percentile
Scheduled7.2 minmedian timetable
On pace99%within 2 min of schedule
THE SHORT ANSWER
How long does Coolidge Corner to Saint Mary's Street take?
The median completed ride from Coolidge Corner to Saint Mary's Street was 5.2 minutes; the published schedule’s median was 7.2 minutes.
Based on 3,664 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 5.2 minutes. That was within 2 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 6.8 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Coolidge Corner to Saint Mary's Street times by daypart
Off-peak produced the fastest median for Coolidge Corner to Saint Mary's Street; Morning rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
5.8 min 987 trips · 99% on paceEvening rush
5.8 min 759 trips · 99% on paceOff-peak
5.2 min 1,190 trips · 99% on paceMEASUREMENT SAMPLE
How Coolidge Corner to Saint Mary's Street was measured
The Coolidge Corner to Saint Mary's Street estimate uses 3,664 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 Coolidge Corner
Trips related to Coolidge Corner to Saint Mary's Street
The Coolidge Corner to Saint Mary's Street record is accompanied by 6 other measured direct rides beginning at Coolidge Corner, each with a published median duration.