United accelerates fleet and cabin overhaul — 250+ jets, A321/787-9 upgauging cuts fuel burn 36%
United is accelerating a fleet and cabin overhaul — more than 250 aircraft due in the next two years — shifting capacity toward A321s and 787-9s that raise seat output and cut fuel burn by 36%. It will premiumise regional CRJ450s and reconfigure cabins as high fuel costs force network pruning.