Originally Posted by
unitedwildcat
Yes, flying business gets you access on origin and destination points of the flight. I forget whether it applies to other airports on the same itinerary, although I'm sure someone here can chime in on that
United does not allow you access to UC other than SFO/LAX and EWR.
American however will allow you access to Admirals Club for connections beyond JFK and LAX-SFO.