Transportation

ISB offers two bus routes to families, provided through its school transportation partner:

1. Route 1: Serving families in Mattapan, Boston (South End/Back Bay), Charlestown, and Somerville
2. Route 2: Serving families in Newton, Waltham, Lexington, and Belmont

Morning and afternoon routes are available to children as young as age 4/entering MidK through Grade 12. All buses are equipped with seat belts. This is a fee-based program, which is significantly subsidized by the school. For more information on the bus program, contact the Admissions Office.

Students residing in Cambridge between the ages of 4 and Grade 8 can take advantage of Cambridge Public School's free school bus transportation program. For more information on ISB's access to the Cambridge Public School bus system, contact the Admissions Office. 

ISB's campus is easily accessible via public transportation:

• Bus: Students and families can use the MBTA's 87, 88, or 89 bus lines. All bus stops are located within a three minute walk to campus.  
• Subway: Two MBTA subway T-stops on the Red Line are within walking distance of the School: Alewife and Davis Square. This is a popular option for ISB's Secondary School students. 

Many students and families choose to walk to and from campus each day. Several bike racks are located on campus, available on a first-come, first-served basis. ISB is easily accessible from the Minuteman Commuter Bikeway (passing through Bedford, Lexington, Arlington, and Cambridge), the Linear Park Path (beginning at the Alewife MBTA station) and Somerville Bikeway, and the Somerville Community Path.