There are two main resorts in AZ, Snowbowl and Sunrise, there's a tiny ski hill near Tucson called Mt. Lemmon but it's not open very often.
ASU is in Phoenix, NAU is in Flagstaff, and U of A is in Tucson. 
Snowbowl is about a 20 minute drive from Flagstaff and Sunrise is located in the White Mountains of eastern AZ. Snowbowl is about two hours from Phx and Sunrise is about three hours away.