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By Scott Hamilton

Jan. 2, 2026, © Leeham News: Boeing’s 2011 decision to launch another derivative of the 737, a slow response to the Airbus A321neo, and the series of crises involving the 737 MAX beginning on March 10, 2019, caused a dramatic drop in market share that places Boeing at a distant No. 2 to Airbus.

The total program orders give Airbus a 54% share of the market for the A320neo family to Boeing’s 33% for the MAX. Adding the A220 into Airbus’ share, the European company has captured 58% of the single aisle market, an analysis of data from the companies as of Dec. 5 reveals.

China’s COMAC C919 captures 7% of the single-aisle market, according to data analyzed from Cirium and other sources. Embraer, with its two-class 100-seat E190-E2 and 120-seat E195-E2, captures a mere 2% of the 100-240 seat sector.

Russia’s Sukhoi MC-21 is not included in this analysis because the market is closed to Airbus, Boeing, and Embraer due to international sanctions on Russia due to the Ukraine war.