The Irish airline Ryanair is the largest budget airline in Europe. This ultra low cost carrier offers flights to most parts of Europe and has a large number of operating bases – almost 100. Ryanair has two primary bases that are located in Dublin and London. They are not part of any worldwide airline alliance.
An airline hub is an airport where the airline has a heavy presence and normally some kind of headquarters. On the other hand, a focus city is a destination where the airline operates limited point-to-point routes. In these cities, the airline doesn’t necessarily need to have an office (even though this sometimes is the case). Many low-cost airlines don't use the definition 'hub' but instead define their main airports of operations as an operating base.
IATA Code: FR
ICAO Code: RYR