Visual Capitalist ranked the world's 20 most valuable airlines by market capitalization in a chart published August 13, using CompaniesMarketCap data as of July 2026. Gabriel Cohen authored the graphic.

Delta Air Lines leads the ranking at $58.5 billion, nearly six times the market value of American Airlines. United Airlines ranks second at $40.1 billion. Ryanair ranks third at $31.1 billion and is the most valuable airline outside the United States.

Southwest Airlines holds fifth place at $22.3 billion. American Airlines ranks 15th at $10.1 billion, the lowest position among the four U.S. carriers on the list. Visual Capitalist attributes the gap between American and its traditional rivals to lower profitability and a heavier debt load.

Asian carriers account for 10 of the 20 airlines in the ranking, which makes the U.S. group of four a compact but high-value share of the list. Delta and United together carry a combined market capitalization of $98.6 billion.

Market value reflects investor expectations for airline earnings, which influence how much carriers can commit to fleet renewal, cabin upgrades and maintenance programs. The valuation gap among U.S. carriers is visible in the chart, with Delta's value far above American's.

The graphic complements airline revenue rankings published by the same outlet in September, which show the same three U.S. carriers occupying the top three positions by annual sales. American ranks third by revenue and 15th by market capitalization, so the two rankings differ for that carrier.

Source: Visual Capitalist - https://www.visualcapitalist.com/the-worlds-most-valuable-airlines/