Griffen04 has set you on the right track. The airport is at most 20 min away from just about anywhere in Buffalo. The cab cost me ~$17.50, but on the way back I met this chick at a bar and after she put me up for the night, she was nice enough to drop me off the next morning (can't beat that price). Stay at the Travelodge but be prepared to walk in the freakin' cold to campus if you didn't rent a car. I took my snow boots and changed into my suit at the school. (take a right in front of the Travelodge, and cross the street just after McDonald's, watch out as there are no crossing lights and you have to pay attention; then walk across the parking lot veering to the right (diagonally); you'll end up at the school before long).
I had to wait at the airport on Saturday morning what on account of the blizzard, cancelled flights, and a bunch of idiotic travelers trying to rebook onto nonexistent flights. But... that seems to be rather atypical.