The carrier, known for its cheap no-frills flights, transported 6.67mln customers last month with its load factor – how full its planes were – rising from 80% to 90%.
Led by chief executive Michael O’Leary, Ryanair has been working to improve its image among passengers by cutting baggage and boarding fees.
Chief marketing officer, Kenny Jacobs said the performance was down to the firm’s "Always Getting Better" customer programme, which O’Leary previously described as “being nicer to customers.”
Jacobs added that customers can “look forward to further service enhancements” as the company looks to continue rolling out the second year of its improved customer service campaign.
He said this would include features such as a new website and app, new cabin interiors and reduced airport fees.
Shares rose 1.3% to €11