Marketplace
Qantas on sale - viva Las Vegas! And while what happens in Vegas stays in Vegas, you can return from $991 ex Sydney, $1003 from Melbourne!
Airline: Qantas
From: SYD/MEL/PER
TO: LAS (Las Vegas)
When: Oct-Dec
FF: Qantas Frequent Flyer
Alliance: OneWorld
From Sydney: https://www.flightscout.co/au/cheap-flights/sydney-australia…
From Melbourne: https://www.flightscout.co/au/cheap-flights/melbourne-austra…
From Perth: https://www.flightscout.co/au/cheap-flights/perth-australia-…
October is a nice month to visit, high temps around 27C.
Just remember that almost all pools are closed in the later months. November and December can get really cold, it's colder than say Melbourne in winter (it actually snowed for a few days last winter).
Great prices though!