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In the CompaniesMarketCap ranking snapshot retrieved October 8, 2026, Delta Air Lines was the world’s largest publicly traded airline company by market capitalization, at $54.39 billion. United Airlines Holdings and Ryanair ranked second and third. These are point-in-time equity valuations—not rankings by passengers, revenue, fleet size, service quality, or profitability.
Top 10 publicly traded airline companies by market cap
The figures below are the USD amounts displayed in CompaniesMarketCap’s indexed ranking snapshot retrieved October 8, 2026. The publisher says the ranking is updated daily, so amounts and positions can change with share prices and currency conversion. They should not be read as October 8 closing values.
| Rank | Company as listed | Market cap (USD) | Ticker shown |
|---|---|---|---|
| 1 | Delta Air Lines | $54.39 billion | DAL |
| 2 | United Airlines Holdings | $35.32 billion | UAL |
| 3 | Ryanair | $28.51 billion | RYAAY |
| 4 | International Consolidated Airlines Group | $25.79 billion | BABWF |
| 5 | Southwest Airlines | $20.19 billion | LUV |
| 6 | InterGlobe Aviation (IndiGo) | $19.22 billion | INDIGO.NS |
| 7 | Air China | $17.57 billion | 601111.SS |
| 8 | Singapore Airlines | $16.16 billion | C6L.SI |
| 9 | LATAM Airlines | $14.77 billion | LTM |
| 10 | China Southern Airlines | $13.02 billion | 600029.SS |
Source for each ranking value and ticker: CompaniesMarketCap’s airline market-cap ranking, retrieved October 8, 2026. The table preserves the company labels used in that ranking.
What market capitalization measures
Market capitalization is generally calculated by multiplying a listed company’s share price by its outstanding shares. It represents the market’s current equity valuation of that company, rather than the value of its airline operations alone. The measure can move as share prices change; for companies valued in different currencies, conversion into USD can also affect the displayed comparison. CompaniesMarketCap describes its ranking as daily updated.
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Why this is not a ranking of every airline group
The list covers publicly traded companies in CompaniesMarketCap’s airline ranking. Private carriers are excluded because they do not have a public share price from which to calculate market capitalization in this comparison. It is therefore more precise to call this a ranking of publicly traded airline companies than a universal list of the world’s largest airline groups.
Market cap also answers a different question from passenger totals, revenue, fleet size, or brand value. A company can rank highly by market value without being the largest by any of those operating measures, and a higher valuation does not establish that an airline is more profitable or provides better service.
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A separate view of July 2026 data shows why the observation date matters: Visual Capitalist’s August 13, 2026 article, based on end-of-July CompaniesMarketCap data, also placed the same ten companies in the top ten, but reported Delta at $58.5 billion. That historical figure is not directly interchangeable with the later indexed snapshot’s $54.39 billion. See Visual Capitalist’s July 2026 airline valuation ranking.
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