Pratt Whitney F119 Engine Surpasses One Million Flight Hours

Pratt & Whitney announced on June 30, 2026, that its F119 engine fleet has surpassed one million cumulative flight hours, marking a major operational milestone for the propulsion system that powers the United States Air Force Lockheed Martin F-22 Raptor.

The milestone, announced from the manufacturers East Hartford, Connecticut headquarters, underscores the long-term viability of the world’s first fifth-generation fighter engine. With the final production F119 delivered in 2013, the focus has shifted entirely to sustainment and modernization to keep the F-22 fleet combat-ready.

Sustainment and fleet readiness

The achievement follows a major sustainment agreement secured on February 20, 2025, when Pratt & Whitney, an RTX business, was awarded a three-year contract valued at up to $1.5 billion to support the F119 fleet. The contract covers maintenance and modernization for more than 400 engines currently in service.

To maintain the engines decades after production ceased, Pratt & Whitney utilizes Model-Based Systems Engineering and a Usage-Based Lifing program. These initiatives are designed to lower lifecycle costs, improve readiness rates, and implement engine control schedule updates, ensuring the F-22 remains operationally viable for the United States Air-Forces (USAF).

Technological legacy and operational history

The F-22 Raptor entered operational service with the USAF on May 12, 2005. Each aircraft is powered by two F119 engines, which feature a unique thrust-vectoring nozzle. This design enables supercruise, allowing the aircraft to sustain supersonic speeds without engaging afterburners.

The technological foundation established by the F119 directly informed the development of the Pratt & Whitney F135 engine, which currently powers the Lockheed Martin F-35 Lightning II.

“Having powered the F-22 Raptor since it launched over 20 years ago, the engine continues to provide unmatched capability, safety and readiness rates,” said Jill Albertelli, President of Military Engines for Pratt & Whitney. “This milestone demonstrates Pratt & Whitney’s commitment to delivering for our customers.”

AirPro News analysis

Reaching one million flight hours on a closed-production engine line highlights the critical role of predictive maintenance and usage-based lifing in modern military aviation. Because the USAF cannot simply procure new F119 engines to replace aging units, the $1.5 billion sustainment contract awarded in 2025 is essential for maintaining the air superiority mission of the F-22.

We view the continued investment in F119 modernization as a clear indicator that the F-22 will remain a cornerstone of USAF operations well into the next decade, even as next-generation air dominance platforms are developed and fielded.

Sources: RTX (Pratt & Whitney)