A comprehensive study conducted by Aircraft Commerce has highlighted the superior fuel efficiency of the Boeing 787-10 Dreamliner when equipped with General Electric GEnx engines. By evaluating performance across five distinct operational routes, the research compared 14 different widebody aircraft and engine combinations, placing this specific configuration at the top of the leaderboard for fuel burn per available seat mile.

According to Simple Flying, the data underscores a significant efficiency advantage for the 787-10, even when contrasted with other modern widebody variants. The study positioned the GEnx-powered 787-10 ahead of the same airframe utilizing Rolls-Royce Trent 1000 engines, as well as outperforming both variants of the Airbus A350. Furthermore, the analysis confirmed that this Dreamliner configuration consumes less fuel per seat than legacy long-haul models, including the Boeing 777-200ER, 777-300ER, and the 747-400.

This efficiency milestone reflects ongoing industry efforts to optimize aircraft design and propulsion technologies to lower operational costs and environmental impact. As airlines continue to modernize their fleets, the selection of specific engine-airframe pairings remains a critical factor in determining long-term profitability and sustainability metrics for major international carriers operating long-range routes.