The nearest airport is Boston Logan International Airport (BOS), which serves numerous domestic and international flights.
BOS is ~7 miles from the Northeastern campus: https://goo.gl/maps/mJvsL2KRg5U2.
To travel to/from the airport to campus or your hotel, you can take the MBTA (~40min by bus/subway) or taxi/Uber/Lyft (~15-30 min by car).
The Logan Express bus also provides transportation to/from BOS airport. The Back Bay stop of the Logan Express is convenient for those staying at downtown hotels. The 800 Boylston Street, near the Boylston Street entrance to the Prudential Center, is very close to the Northeastern University dorm (at 60 Belvidere St.) that we plan to use to accommodate conference attendees.