Based on Kayak flight and hotel searches conducted May 1-26 for travel in August, Travel and Leisure identified the top 10 least expensive domestic destinations, all coming in at less than $500 for average round-trip airfare and average nightly hotel rates. Las Vegas ranked fifth at an average cost of $462, behind Ft. Lauderdale ($400), Orlando ($426), Atlanta ($435), and New Orleans ($461). Las Vegas was followed by Houston ($463), Austin ($485), Myrtle Beach ($486), Phoenix ($489), and Dallas ($491). We note that every one is in a hot zone, so the off-season is a bargain with temperatures soaring in these destinations.
Source: Las Vegas News