Originally Posted by
Geordie405
Which one are you referring to, as there are now two at Las Vegas? There's one at the D gates (Terminal 1) which you reach by going up the smaller bank of escalators (i.e. the ones directly opposite the blue line tram / immediately to the left of the red line tram) and then there's the one at Terminal 3 which BA uses for its flights.
Indeed I was referring to the D gate lounge, assuming that AS goes from there alongside AA, but actually now I've looked it up, AS departs from E.