A total of 750 posts will go at the Warton and Samlesbury plants in Lancashire where parts for the Eurofighter Typhoon are manufactured.
BAE is facing an order gap for the Typhoon so wants to slow production before an expected order from Qatar.
In all, a total of 1,400 roles will go across England in the firm's air and information business.
Outside Lancashire, 400 posts will close in Brough, East Yorkshire, and 245 are being cut across RAF Marham and Leeming.
Meanwhile 340 maritime jobs will be lost in Portsmouth and Solent region and a further 180 posts will go in London, Guildford and other locations.
