Each flight search engine optimize for something slightly different so it is important to know what that is to help you get what you&#x27;re looking for.<p>My personal favorite flight search is Kayak&#x27;s Explore map [1] which simply shows all of the possible destinations and the best prices to each. The itineraries it comes up with are of varying lengths and for various times of years, but there are some pretty incredible deals you&#x27;d never find by searching random dates.<p>I recently found a $38 ticket round trip SFO to Chicago and there are routinely sub $400 tickets LAX to various airports around Scandinavia. The best deal I&#x27;ve ever seen was $354 RT LAX to Tel Aviv.<p>[1] <a href="http:&#x2F;&#x2F;www.kayak.com&#x2F;explore&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.kayak.com&#x2F;explore&#x2F;</a>