Southwest is a real crapshoot so to speak. He's right, you won't get the best price this far out. I keep close track when planning a trip as I always take SW. Sometimes it's a real rollercoaster. The fares I'm interest in go down, up, down, up, you have to decide when to jump on. As for an actual advertised sale I've found Vegas isn't on sale nearly as much as it has been in the past 3-4 years. Good luck, fare hunting is fun and also tedious.