OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

HaymarkettoStony Brook

Orange Line

A direct MBTA train from Haymarket to Stony Brook took a median 15 minutes across 2,921 observed trips; 90% of measured rides finished within approximately 16 minutes.

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

Typical15 min50th percentile
Slower trip16 min90th percentile
Scheduled16 minmedian timetable
On pace98%within 2 min of schedule

THE SHORT ANSWER

How long does Haymarket to Stony Brook take?

The median completed ride from Haymarket to Stony Brook was 15 minutes; the published schedule’s median was 16 minutes.

Based on 2,921 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 15 minutes. That was within 1.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 16 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Haymarket to Stony Brook times by daypart

Off-peak produced the fastest median for Haymarket to Stony Brook; Morning rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

15 min 648 trips · 99% on pace

Midday

15 min 637 trips · 95% on pace

Evening rush

15 min 699 trips · 99% on pace

Off-peak

14 min 937 trips · 99% on pace

MEASUREMENT SAMPLE

How Haymarket to Stony Brook was measured

The Haymarket to Stony Brook estimate uses 2,921 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 →