SkyScanner is still the king when searching for flights coupled with the "Explore" option which will return the cheapest flight destinations. You can also simp

SkyScanner is still the king when searching for flights coupled with the "Explore" option which will return the cheapest flight destinations. You can also simply search for a country such as "Greece" and the results will rank the cheapest airports from your departure. When including other travel options such as Trains, Buses (Flixbus), GoEuro shows these methods, but without the "Explore" capability. SkyScanner just announced the ability to include train travel which hopefully will be a marriage of these technologies. https://techcrunch.com/2018/04/03/skyscanner-adds-train-travel-booking-starting-in-uk/ https://techcrunch.com/2018/04/03/skyscanner-adds-train-trav...