Airports, ranked by distance:

Burlington (BTV)—0-20 min drive, but may have a 24 hr+ delay depending on airline.

Montreal, Quebec—2 hr drive. Great direct flights. Passport required.

Albany, NY (ALB)—2.5-3 hr drive. Southwest flies here.

Manchester, NH (MHT)—3 hr drive. Southwest flies here.

Hartford, CT: Bradley (BDL)—3.5-4 hr drive. Southwest flies here.

Boston, MA: Logan (BOS)—4 hr drive.