Yes, America West had a LAS base. It closed as of March 1st. We had a small crew room under what used to be B3. The old AWA ops under the low B gates was moved over to the A gates after the merger. We are now mostly in the A gates for the few remaining flights we have out of LAS.
We went from 150 flights/day at AWA out of LAS to about 25 now. Pretty sad. We ruled the night banks out of LAS for a long time and we had a lot of day service to the West coast and PHX. We used to have 12 flights a day between PHX and LAS. We even ran the 747 twice a day between PHX and LAS (the flights went on to HNL and JFK and return).