Michael O'Leary said in a written statement: "We are very disappointed at these latest Boeing delivery delays, but we continue to work with Boeing to maximise the number of new B737 aircraft we receive by the end of June, which we can confidently release for sale to customers during the S24 peak. We will now work with Boeing to take delayed aircraft deliveries during Aug and Sept 2024 to help Boeing reduce their delivery backlog. We regret any inconvenience caused to some customers and our airport partners by these enforced S24 schedule changes, which will reduce our full year traffic growth from 184m in FY24 to between 198m to 200m in FY25. We are working with our airport partners to deliver some growth to them, albeit later in Sept and Oct (rather than Jul and Aug). This traffic growth can only be delivered at lower fares during these shoulder months.