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F-35 Program Cost Rises $51 Billion, or 10%, for Software, Readiness and Engine Upgrades

The cost of the F-35 program has increased by about $51 billion—roughly 10%—since late 2023, driven by upgrades to software, fleet readiness, spare-parts inventories and engine power. The increase adds to the costs of the most expensive program in U.S. history.

Discovered 2026-08-26T09:05:04.814370-07:00 | 2026-08-26T09:05:04.814370-07:00

Briefing

What Hype is tracking

The F-35 program’s estimated cost has risen by approximately $51 billion since late 2023, underscoring the scale of funding required to sustain and upgrade the fleet.
The increase is tied to software, readiness, spare-parts and engine-power improvements, highlighting the continuing lifecycle demands of advanced military aircraft.
As the most expensive program in U.S. history, further cost growth has implications for defense budget allocation and procurement planning.

Reported By

Bloomberg Bloomberg Law