Market value of selected airlines worldwide 2025

Delta Air Lines was the most valuable airline in the world as of April 2025, with a market value of **** billion U.S. dollars. Ryanair Holdings ranked second, with **** billion dollars worth of market value. 

Market valuation

The market value of a company typically refers to the market capitalization of a publicly traded firm, and is calculated by multiplying the number of shares by the current share price. A company’s market value also serves as an indicator of its business prospects. Other factors such as profitability, debt load, and metrics like earnings before tax, depreciation, and amortization (EBITDA) are also considered when assessing a company's overall value.  

Delta and Southwest: southern roots, global reach

Southwest Airlines is the world’s largest low-cost carrier and the fourth-leading domestic carrier in the United States, operating from its headquarters at Dallas Love Field.  
Another powerhouse rooted in the American South is Delta Air Lines, one of the largest airlines in the world in terms of passengers carried. With its headquarters at the world’s busiest airport, Hartsfield-Jackson Atlanta International Airport, the airline is a member of the SkyTeam airline alliance.