There are tons of flight and hotel finders out there. Plenty of them are even pretty good. So if you feel strong allegiance to the tried-and-true Kayak or Expedia brands, for instance, then you may not need to fix what ain’t broke. But, if you’re looking for a simple, intuitive, and robust flight finder, our favorite is Hipmunk. You can search by location or airport, use flexible dates, and sort by price, time, and, our favorite category, “agony,” which uses a formula to basically tell you which flight is the all-around easiest. You can also set up alerts to find out when a flight drops in price which is very clutch.