OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Union SquaretoBeaconsfield

Green Line

A direct MBTA train from Union Square to Beaconsfield took a median 43 minutes across 3,136 observed trips; 90% of measured rides finished within approximately 50 minutes.

Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only

Typical43 min50th percentile
Slower trip50 min90th percentile
Scheduled44 minmedian timetable
On pace71%within 2 min of schedule

THE SHORT ANSWER

How long does Union Square to Beaconsfield take?

The median completed ride from Union Square to Beaconsfield was 43 minutes; the published schedule’s median was 44 minutes.

Based on 3,136 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 43 minutes. That was within 1.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 50 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Union Square to Beaconsfield times by daypart

Off-peak produced the fastest median for Union Square to Beaconsfield; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

42 min 556 trips · 79% on pace

Midday

43 min 829 trips · 67% on pace

Evening rush

45 min 673 trips · 67% on pace

Off-peak

41 min 1,078 trips · 73% on pace

MEASUREMENT SAMPLE

How Union Square to Beaconsfield was measured

The Union Square to Beaconsfield estimate uses 3,136 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 →