Just found this while doing some research for a friend, so thought I'd share in case anyone was already planning a trip then. Normal Ticket is $199.
American Airlines.
hidden city.
Depart: FEB 2, 3, 8, 9.
Route: JFK to JAX, (stop MIA) = $77
Return: FEB 3, 4, 5, 6, 7, 10*, 11, 12.
Route: MIA to PIT, (stop JFK) = $92
*(also avail with Delta)