The MBTA's "Green Line" can be used to reach Boston College from all of the hotels in Downtown Boston.
The Boston College branch of the MBTA's "Green Line" (B) ends at the Boston-Newton boundary on Commonwealth Avenue. Cross the street and walk by St. Ignatius Church; continue walking straight to Alumni Stadium. Around Campus shuttle buses are available at Gate E of the stadium.
For more information, visit the MBTA official website.