As of December 2025 Southwest Airlines has a market cap of โน1.785 Trillion. This makes Southwest Airlines the world's 1121th 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 Dec 5th, 2025 the market cap of Southwest Airlines was reported to be: