According to airlinepilotcentral.com:

Colgan:
Albany (ALB)
Binghamton (BGM)
Buffalo (BUF)
Ithaca (ITH)
Jamestown (JHW)
LaGuardia (LGA)
Rochester (ROC)
Syracuse (SYR)
White Plains (HPN)

Air Wisconsin (supposed to be open sometime later this year), American Eagle and Piedmont:
LGA

Republic (Chautauqua flying):
BUF
LGA

Mesa:
JFK

Hope this helps