American Airlines to debut new suites with sliding doors after delays
1. American Airlines' new suites debut on June 5, enhancing premium offerings. 2. 51 Flagship Suites on Boeing 787-9 aim to attract high-spending customers. 3. Rivals like Delta and JetBlue also upgrade their business-class products. 4. American will phase out international first-class for a larger premium cabin. 5. Free Wi-Fi for loyalty members will strengthen competitiveness.