Liberty Travel offers a Harrah's Hotel and Casino 3-Night Flight and Hotel Package for Two in Las Vegas, NV, with prices starting at $518, as provided by ShermansTravel. That's the second-lowest 3-night Vegas vacation package we've seen. (We saw packages for $8 less in December.) It's also a current low by $4. This price is based on departure from Philadelphia, PA; other departing cities are available for an additional cost. Some dates may be excluded and additional fees may apply. Book this travel deal by July 31 for travel through November 15.

Of note, Liberty Travel offers other 3-night Las Vegas vacation packages with prices starting at $265 per person. Scroll down to see them all.