Exhibit 99.1 CARNIVAL CORPORATION & PLC REPORTS RECORD FIRST QUARTER REVENUES AND ALL-TIME RECORD BOOKING LEVELS MIAMI (March 27, 2024) - Carnival Corporation & plc (NYSE/LSE: CCL; NYSE: CUK) announced financial results for the first quarter 2024 and provided an outlook for the full year and second quarter 2024. • Record first quarter revenues of $5.4 billion with record net yields (in constant currency) and record net per diems (in constant currency) both significantly exceeding 2023 levels (see “Non-GAAP ...