FlyerTalk Evangelist and Ambassador: The British Airways Club
Join Date: Jun 2008
Location: Somewhere between 0 and 13,000 metres high
Programs: AF/KL Life Plat, BA GGL+GfL, ALL Diam, Hilton Diam, Marriott Gold, blablablah, etc
Posts: 33,120
Just to second that LAS is a much better choice than LAX for your itinerary.
Also with early release of award seats guarantee, late release, while it still happens, is much less frequent than before especially for premium class seats.
depending on when you plan to go, further availability to west coast in particular may be very hard to get.