Southwest Airlines today is giving 50% off all flights to and from Vegas. You have to book before midnight, but you can travel from around 1/13 to 3/11. I just booked 2 more trips because they're so cheap! I got a round trip ticket with everything included to Phoenix for $80 on a weekend!
Good deal if you live here or want to come here!
http://www.southwest.com/landing/veg...=fo1_hp_081230