Ryanair is the low-cost airline Europe loves to hate and can’t get enough of. Based at Dublin Airport in Ireland, passengers will find Ryanair planes flying far beyond the Emerald Isle, with routes across the continent and beyond. In fact, Ryanair is one of the largest airlines in Europe by passengers carried and fleet size.The airline’s huge size, far reach, and ridiculously cheap flight tickets have allowed it to rank among the most popular airlines in Europe among vacationers. Time and time again, Ryanair has proved that passengers are willing to sacrifice a bit of comfort and convenience during short flights if it means they can save money.