Looking to do a 1-2 week trip anytime between now and September to use up a bunch of airline and hotel credits (not miles/points). Would also consider several 2-3 day trips if it's within the Contiguous 48.
Being that I don't have specific destination in mind, I want to book a flight that's priced below the seasonal average (think West coast under $150, Europe under $350, Asia under $600 etc). Is there a website that is flexible enough to show a search to "Anywhere" that will also show if the price is trending above or below average on the results page?