Morning rush
15 min 1,372 trips · 90% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Science Park/West EndtoArlington
Green Line
A direct MBTA train from Science Park/West End to Arlington took a median 15 minutes across 6,866 observed trips; 90% of measured rides finished within approximately 19 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical15 min50th percentile
Slower trip19 min90th percentile
Scheduled17 minmedian timetable
On pace87%within 2 min of schedule
THE SHORT ANSWER
How long does Science Park/West End to Arlington take?
The median completed ride from Science Park/West End to Arlington was 15 minutes; the published schedule’s median was 17 minutes.
Based on 6,866 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 15 minutes. That was within 2.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 19 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 Arlington times by daypart
Off-peak produced the fastest median for Science Park/West End to Arlington; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
15 min 1,747 trips · 87% on paceEvening rush
16 min 1,401 trips · 83% on paceOff-peak
14 min 2,346 trips · 88% on paceMEASUREMENT SAMPLE
How Science Park/West End to Arlington was measured
The Science Park/West End to Arlington estimate uses 6,866 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 Arlington
The Science Park/West End to Arlington record is accompanied by 6 other measured direct rides beginning at Science Park/West End, each with a published median duration.