As of January 2026 Allegiant Air has a market cap of A$2.46 Billion. This makes Allegiant Air the world's 5106th 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 Jan 16th, 2026 the market cap of Allegiant Air was reported to be: