Largest US Airlines by Market Cap

This ranking lists companies whose profile uses the industry Airlines, Airports & Air Services and the country code is US or USA — major carriers whose primary listing maps to the United States in our data. Market cap uses the latest prices we store.

Carriers headquartered in the U.S. but filed under another country code, or classified as a different industry (cargo-only labels, regional aviation services, etc.), may be missing. For every airline globally by cap, use a full-screening site; here we mirror a tight US slice. See the global market cap ranking or the rankings hub.