thank you for your replies. Most helpful. don't know whether to use the lounge passes in Las Vegas though. I don't know what the lounge is like. We will be flying in from Cardiff at 0920 and the flight to SFO leaves at 1215. I don't know how long the turnaround will be but 2 and a half hours is a long time to sit in the departure lounge so will probably use the passes in the lounge in Dublin. Shame they don't do bacon rolls !!