Trackside
MBTA Commuter Rail Fairmount

Train 6666 Readville to South Station

unofficial updated nightly logging since Aug 2026 How this is measured →

Usually 4 min late
Scheduled arrival 4:00 PM
Based on 6 recorded Saturdays — early data.
Departs Readville
Departs 3:30 PM
Based on 5 recorded Saturdays — early data.
Usually on time
Show all stops
Fairmount
Scheduled arrival 3:33 PM
Based on 5 recorded Saturdays — early data.
Usually on time
Blue Hill Avenue
Scheduled arrival 3:36 PM
Based on 5 recorded Saturdays — early data.
Usually 2 min late
Morton Street
Scheduled arrival 3:38 PM
Based on 5 recorded Saturdays — early data.
Usually 2 min late
Talbot Avenue
Scheduled arrival 3:41 PM
Based on 5 recorded Saturdays — early data.
Usually 2 min late
Four Corners/Geneva
Scheduled arrival 3:44 PM
Based on 6 recorded Saturdays — early data.
Usually 2 min late
Uphams Corner
Scheduled arrival 3:47 PM
Based on 6 recorded Saturdays — early data.
Usually 2 min late
Newmarket
Scheduled arrival 3:49 PM
Based on 6 recorded Saturdays — early data.
Usually 2 min late

Where delay builds

Typical delay along the route across Saturdays.

25mReadville: usually on timeFairmount: usually on timeBlue Hill Avenue: usually 2 min lateMorton Street: usually 2 min lateTalbot Avenue: usually 2 min lateFour Corners/Geneva: usually 2 min lateUphams Corner: usually 2 min lateNewmarket: usually 2 min lateSouth Station: usually 4 min late+4ReadvilleSouth Station

Recent performance

How late it arrived on each recent day it ran.

20260926: 3 min late3m9/26Sat

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