Boeing’s 2026 Commercial Market Outlook projects airlines will require 43,625 new jetliners and freighters from 2026 to 2045, with single-aisle aircraft accounting for 77% of deliveries at 33,545 units. The forecast remains unchanged from 2025 despite near-term disruptions including the Iran war impact, underscoring sustained confidence in long-term traffic growth expected to double over two decades. Nearly half of the demand stems from replacing aging aircraft, while the remainder supports an 80% fleet expansion to over 50,000 units by 2045. Widebody deliveries are projected at 7,715, factory-built freighters at 930, and regional jets at 1,435. China will receive the largest share of new deliveries, reflecting Asia’s central role in fleet modernization as over 90% of the 2045 fleet comprises new-generation, fuel-efficient aircraft.