By plane
There are flights to and from Atlanta, Chicago O'Hare, New York City LaGuardia, Kennedy, Newark, Orlando, Philadelphia, Washington DC Dulles and National, and Detroit to the Burlington International Airport BTV. It is a small airport, which mostly serves regional jets and turboprops for civilian passenger use.
Rutland State Airport RUT has two flights a day to Boston Logan and one on weekends.
Another alternative is the Manchester Airport MHT in New Hampshire as it serves as an alternate hub for all of northern New England and is a 3 hour or less drive to just about anywhere in Vermont.
Montreal's Pierre Elliott Trudeau Airport (http://www.admtl.ca/) IATA: YUL formerly Dorval Airport is another alternative.
By train
There are two Amtrak trains that service Vermont:
The "Vermonter" with daily service between Washington, D.C., New York and St. Albans, Vermont makes nine stops in Vermont.
The "Ethan Allen Express" with daily service between New York and Rutland, Vermont.
By car
Driving access to Vermont is Interstate 91 that runs north-south and Interstate 89 that runs northwest-southeast.
By ship
Ferry service is available from three locations in Vermont that provides access to New York across Lake Champlain from Burlington,VT to Port Kent, NY, Grand Isle, VT to Plattsburgh, NY and Charlotte, VT to Essex, NY.