As a new international student you are expected to arrive by the start date of your program stated on the I-20 issued by Northeastern, or on the DS-2019 issued by Northeastern or by your sponsoring agency/government.
When you plan your travel arrangements, it is important to keep in mind that you will only be allowed to enter the United States if:
All international students will need to report to the ISSI at their scheduled Immigration Clearance during orientation. Check the Orientation Schedule or the date and time of your session.
It’s easy to get to campus from Logan Airport by either a taxi, or, if you don't have a lot to carry, by public transportation.
For Maps of Logan International Airport
http://www.massport.com/logan-airport/Pages/LoganAirportMaps.aspx
Public Transportation (MBTA)
http://mbta.com/schedules_and_maps/subway/