Morning rush
7.2 min 459 trips · 93% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Science Park/West EndtoUnion Square
Green Line
A direct MBTA train from Science Park/West End to Union Square took a median 7.8 minutes across 2,577 observed trips; 90% of measured rides finished within approximately 9.8 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical7.8 min50th percentile
Slower trip9.8 min90th percentile
Scheduled9.2 minmedian timetable
On pace93%within 2 min of schedule
THE SHORT ANSWER
How long does Science Park/West End to Union Square take?
The median completed ride from Science Park/West End to Union Square was 7.8 minutes; the published schedule’s median was 9.2 minutes.
Based on 2,577 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 7.8 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 9.8 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Science Park/West End to Union Square times by daypart
Evening rush produced the fastest median for Science Park/West End to Union Square; Off-peak produced the slowest.
Differences can change as the rolling dataset updates.
Midday
7.2 min 604 trips · 90% on paceEvening rush
7.2 min 545 trips · 97% on paceOff-peak
7.8 min 969 trips · 94% on paceMEASUREMENT SAMPLE
How Science Park/West End to Union Square was measured
The Science Park/West End to Union Square estimate uses 2,577 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 Science Park/West End
Trips related to Science Park/West End to Union Square
The Science Park/West End to Union Square record is accompanied by 6 other measured direct rides beginning at Science Park/West End, each with a published median duration.