As of March 2026 Southwest Airlines has a market cap of A$28.45 Billion. This makes Southwest Airlines the world's 1127th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Mar 11th, 2026 the market cap of Southwest Airlines was reported to be: