The $62 billion F-22 program would have certainly had some of the research and development costs alleviated had the sale of the fighter been approved for American allies, but the Obey Amendment to the 1998 Department of Defense Appropriations Act very specifically prevents the sale of the F-22 Raptor to any foreign government — and they were lining up to buy.
Ultimately, the F-22 program was ended because it was very costly and the need for an air-to-air fighter to counter Soviet fighters just wasn't the U.S. military's priority any longer. The U.S. military purchased 183 Raptors, well short of the proposed 381. But then China and Russia began producing next-generation fighters anyway, so the U.S. doubled down on the Joint Strike Fighter.
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