Exhibit 99.1 CONTACT: Scott B. Flaherty Executive Vice President & Chief Financial Officer 561.413.0112 Willis Lease Finance Corporation Reports First Quarter 2025 Financial Results Delivers Pre-Tax Income of $25.3 Million and Record Quarterly Revenue of$157.7 Million Declares Second Quarter 2025 Dividend of $0.25 Per Share COCONUT CREEK, FL — May 6, 2025 — Willis Lease Finance Corporation (NASDAQ: WLFC) ("WLFC" or the "Company"), the leading lessor of commercial aircraft engines and global provider of avi ...