- Ryanair is an Irish low-cost airline that was founded in 1984. It is currently headquartered in Dublin, Ireland, and operates over 1,800 flights daily to more than 200 destinations in 40 countries. Ryanair is known for its no-frills approach and low fares, offering a basic level of service with additional options available for an extra fee. Despite its low-cost model, Ryanair has become one of the largest and busiest airlines in Europe. However, it has also faced criticism for its strict baggage policies and customer service.