MBTA SL3 live tracking and departures

Chelsea Station - South Station · America/New_York

Selected branch: Chelsea · 9 stops.

SL3 live vehicle tracking

Live predictions available. Fresh vehicle positions only; 5 fresh vehicles matched to this route. The map shows vehicles assigned to the selected stopping pattern. Vehicles on other branches may be omitted.

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Official route geometry · 2 fresh vehicles on selected branch

Positions refresh every 30 seconds. An absent marker does not establish a canceled trip. Predictions and vehicle positions can have different availability.

Next departures from South Station

ChelseaScheduled

9 min10:10 AM · Sat, Oct 24

ChelseaScheduled

20 min10:21 AM · Sat, Oct 24

ChelseaScheduled

31 min10:32 AM · Sat, Oct 24

ChelseaScheduled

41 min10:42 AM · Sat, Oct 24

ChelseaScheduled

56 min10:57 AM · Sat, Oct 24

ChelseaScheduled

11:12 AM11:12 AM · Sat, Oct 24

ChelseaScheduled

11:27 AM11:27 AM · Sat, Oct 24

ChelseaScheduled

11:42 AM11:42 AM · Sat, Oct 24

ChelseaScheduled

11:57 AM11:57 AM · Sat, Oct 24

ChelseaScheduled

12:12 PM12:12 PM · Sat, Oct 24

ChelseaScheduled

12:19 PM12:19 PM · Sat, Oct 24

ChelseaScheduled

12:27 PM12:27 PM · Sat, Oct 24

Live predictions available · Live predictions and published schedule fallbacks are labeled on each departure.

More MBTA travel information

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Published MBTA schedule

Imported Oct 23, 2026 · 19:06 UTC · Service dates 2026-10-14 through 2026-12-12. See data status

Schedule and realtime data provided by MassDOT / MBTA. Source details ↗