OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

PortertoNorth Quincy

Red Line

A direct MBTA train from Porter to North Quincy took a median 29 minutes across 3,135 observed trips; 90% of measured rides finished within approximately 33 minutes.

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

Typical29 min50th percentile
Slower trip33 min90th percentile
Scheduled29 minmedian timetable
On pace79%within 2 min of schedule

THE SHORT ANSWER

How long does Porter to North Quincy take?

The median completed ride from Porter to North Quincy was 29 minutes; the published schedule’s median was 29 minutes.

Based on 3,135 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 29 minutes. That was within 0.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 33 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Porter to North Quincy times by daypart

Morning rush produced the fastest median for Porter to North Quincy; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

29 min 688 trips · 86% on pace

Midday

29 min 783 trips · 81% on pace

Evening rush

30 min 681 trips · 72% on pace

Off-peak

29 min 983 trips · 78% on pace

MEASUREMENT SAMPLE

How Porter to North Quincy was measured

The Porter to North Quincy estimate uses 3,135 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 →