Travelocity is having a Las Vegas Holiday Bonus Sale, the rates are incredible, you get to stay at the Wynn from $149, The Bellagio from $129, or The Mirage from $79. I just checked the available dates for Wynn, the $149 rate applies to Sunday thru Thursday for the remaining weeks for December (except Dec 25, 30, 31).

If you book your Las Vegas trip before Dec 15th, you can also take $75 off a 3-Night Flight + Hotel Trip to Las Vegas with PROMOCODE VEGAS75 (when you use mastercard).