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Silver Line SL4

Service every 15 minutes or better
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Choose a stop to get schedule information and real-time departure predictions.

Silver Line Extension (SLX) Alternatives Analysis

 Silver Line bus on street
Projects

Silver Line Extension (SLX) Alternatives Analysis

The MBTA is studying the feasibility, benefits, and cost of extending SL3 service to Everett, Kendall Square, and North Station.

News

MBTA Gears Up for South Boston’s Annual St. Patrick’s Day Parade Celebration with Increased Service, Staff, and Safety Measures
March 4, 2025
MBTA Gears Up for South Boston’s Annual St. Patrick’s Day Parade Celebration with Increased Service, Staff, and Safety Measures

MBTA Shares Service Plans for 250th Celebrations April 19-20
February 13, 2025
MBTA Shares Service Plans for 250th Celebrations April 19-20

MBTA and City of Boston Announce Partnership to Improve Bus Reliability by Expanding Transit Signal Priority City-wide After Successful Test Along Brighton Avenue
January 27, 2025
MBTA and City of Boston Announce Partnership to Improve Bus Reliability by Expanding Transit Signal Priority City-wide After Successful Test Along Brighton Avenue

MBTA Announces January Service Changes
December 26, 2024
MBTA Announces January Service Changes

MBTA Commemorates Phase One of the Bus Network Redesign
December 16, 2024
MBTA Commemorates Phase One of the Bus Network Redesign

PDF Schedules and Maps

Current Route SL4 schedule and map PDFUpcoming Route SL4 schedule and map PDF — effective Apr 6Upcoming Route SL4 schedule and map PDF — effective Apr 6