AerCap Leases Three Boeing 777-300ERSF to China Southern

Fleet Expansion at China Southern

AerCap Cargo has finalized lease agreements with China Southern Air Logistics for three Boeing 777-300ERSF converted freighter aircraft, with the first delivery scheduled for October 2027. The agreement marks a significant step in the carrier’s fleet modernization strategy. Following the initial delivery, the remaining two aircraft are expected to join the fleet in the first and second quarters of 2028.

The Passenger-to-Freighter (P2F) conversion program, led by Israel Aerospace Industries (IAI), transforms the Boeing 777-300ER passenger airframe into a heavy-lift cargo platform. This variant, known as The Big Twin freighter, is designed to meet the rising demand for high-volume capacity in global logistics. Aengus Kelly, CEO of AerCap, noted that the aircraft will integrate seamlessly into the airline's existing 777 operations, leveraging the efficiency of the GE90 engine platform.

Market Demand and Technical Specifications

The shift toward the 777-300ERSF reflects a broader industry trend where e-commerce growth prioritizes cargo volume over total weight capacity. Because e-commerce shipments are often bulky but light, the increased cabin volume of the converted freighter provides a competitive advantage. The program received its Supplemental Type Certificate (STC) in late 2025 from the Federal Aviation Administration (FAA) and the Civil Aviation Authority of Israel (CAAI), certifying the structural modifications required for heavy cargo operations.

777-300ERSF vs Boeing 777F: Key Specifications

The Evolution of the Big Twin

The 777-300ERSF program has matured rapidly since the first converted airframe entered service with Kalitta Air in September 2025. Following that milestone, Emirates SkyCargo deployed the type in June 2026, validating the aircraft's performance on long-haul routes. For CSA Logistics, the introduction of these freighters provides a critical tool to expand intercontinental cargo networks while replacing older, less efficient four-engine aircraft. While the 777-300ERSF offers superior volume, market analysts note that it carries more structural weight than purpose-built, next-generation freighters like the upcoming 777-8F, representing a balanced trade-off for operators seeking immediate capacity.

Why This Matters for Cargo Operators

This lease agreement underscores the strategic importance of P2F conversions in the current aviation landscape. For IAI, the deal secures long-term demand for its engineering services, while ensuring GE Aerospace maintains significant maintenance and repair revenue for the GE90-115B engine fleet. As airlines phase out legacy 747-400F aircraft to meet sustainability targets, the Big Twin provides a path to reduce fuel consumption by up to 21% per tonne, directly impacting the bottom line for global logistics providers.