Burlington Intl (BTV). Less than an hour's drive from there. Driving from Midwest is an option too, a very scenic ride through upstate NY if you have time. We drive back/forth to Indianapolis regularly, takes 15 hours in winter; bit less in summer.
BTV (South Burlington VT) is the closest airport with commercial flights. Manchester NH is the second closest approx 2 hour drive and sometimes has cheaper flights. I also do the drive periodically from Indiana. 15 hours plus stops. Nice to have the car to explore Vermont.
Burlington
We flew into Burlington from Cincinnati due to the cheap tickets. From there it was only a 50 minute drive to Stowe.
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