There is no shortage of websites out there to shop for airfares. Escape’s sole purpose is to show you the cheapest flights available from any city over a specified date range.
Search results are displayed on a map and the bottom of the screen shows you the cheapest flight by continent.
I’ve encountered other sites that work similarly, but I like the site’s narrow focus, because who doesn’t like to pay the least possible when they fly? My only disappointment was I didn’t actually find any flights that were all that cheap on the dates I wanted to travel!