If you are not going to spend time in the Boston area, I would suggest looking at flying into Manchester NH (airport code MHT). I haven't flown in there myself, but I hear it is great for anyone whose destination is north of Boston.
It is a small airport, that has apparently grown over the past several years to the point where you can get in there pretty reasonably (price and scchedule).
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Slow Ride Cyclists of NEPA
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