I've done 1 hr 15 min, including baggage claim, with time to spare to go to the AC....but since the showers were full when I arrived, there was not enough time for a shower....which was a slight shame since I did not have time for a shower during my 1 hr 35 min connection at LHR (ok, I could probably could have tried there, but I wasn't sure how far the gate was from the Flag Ship lounge).