Great idea. The only sites I know that come kind of close is specific airline websites like Delta will have special deals from various cities and what you need to do is look at the list and find flights originating in your city. Although, Delta is rarely very cheap. I think American Airlines used to email me similar lists. Marriott emails me special deals also, or you can go to their site to see the deals. If your airport is a hub city airport, I recommend signing up for that airline’s deals to get email notices or look at that airline’s website. If Spirit airlines is in your airport they often have great deals. If you live near a port city that has cruise ships, cruises have fantastic last minute prices. Vacationstogo.com is great to surf cruises available.