Irish low-cost carrier Ryanair (FR) is one of the biggest airlines in Europe. It serves about 180 destinations in 27 European countries, plus Morocco. The airline's fleet is configured with a no-frills Economy Class, and passengers can expect to pay extra for things such as checking in at the airport and checking luggage, as well as food and drinks onboard. Ryanair has dozens of operating basis, with the primary bases located at Dublin Airport (DUB) and London Stansted Airport (STN).