Is there a website for last minute travel?

I have three days off from work for the 4th of July holiday, but have no idea where I want to go. Does anyone know if there is a site that is dedicated for last minute travel? Also if there is a site where a person can punch in their departure city, their budget, and then have a list of options suggested to them? I’m not very picky, I just want to get out of town. Thanks.