The airline industry is soaring to new heights in 2025, with projections exceeding $1 trillion in revenue for the first time. This milestone reflects the industry's robust recovery and increasing demand for both international and domestic air travel. Several carriers have emerged as the wealthiest in terms of market capitalization and total assets, demonstrating the rapid growth of the aviation sector.

Here's a look at the top 7 richest airlines in the world in 2025:

1. Delta Air Lines (USA)

Delta Air Lines leads the pack with a market capitalization of $26.31 billion. Based in Atlanta, Delta operates a vast network spanning six continents, offering reliable service and a smooth travel experience. With total assets of $73.1 billion and $61.6 billion in revenue for 2024, Delta demonstrates consistent profitability and resilience. Its strong domestic presence, premium service offerings, and extensive international routes solidify its position as the most valuable airline worldwide.

2. IndiGo (India)

IndiGo, India's largest airline, secures the second spot with a market capitalization of $23.79 billion. Renowned for its low-cost tickets, on-time flights, and extensive network within India, IndiGo is rapidly expanding its international routes. The airline's low-cost model contributes significantly to its earnings.

3. Ryanair (Ireland)

Ryanair, Europe's leading low-cost carrier, boasts a market capitalization of $23.64 billion. Headquartered in Dublin, Ryanair connects over 200 destinations across Europe, capitalizing on its ultra-cheap tickets and high passenger volume to generate substantial profits.

4. United Airlines (USA)

United Airlines holds the fourth position with a market capitalization of $21.52 billion. Based in Chicago, United connects major cities across the Americas, Europe, and Asia. Passengers favor United for its modern fleet and attractive loyalty benefits. The company has total assets of $61.7 billion.

5. Air China (China)

Air China, the flag carrier of China, is valued at $15.28 billion. Connecting China to key cities in Asia, Europe, and North America, Air China showcases China's growing aviation influence with its modern aircraft and high-quality service.

6. International Airlines Group (IAG) (Spain)

IAG, with a market capitalization of $14.90 billion, owns prominent airlines such as British Airways, Iberia, Vueling, and Aer Lingus. Its diverse portfolio of premium and low-cost airlines allows it to cater to a wide range of travelers, ensuring consistent revenue streams.

7. Southwest Airlines (USA)

Southwest Airlines, another major U.S. carrier, rounds out the top seven with a market capitalization of $14.66 billion. Known for its focus on domestic routes and customer-friendly policies, Southwest maintains a strong position in the American aviation market.

The International Air Transport Association (IATA) predicts that the airline industry will generate over $1 trillion in revenue this year. Passenger revenue for 2025 is projected to reach $693 billion, an increase of 1.6 percent year over year, bolstered by an additional $144 billion in ancillary revenue. Net profits for 2025 are projected to reach $36 billion, up from the $32.4 billion estimated in 2024. These figures highlight the financial strength and increasing profitability of the airline industry in 2025.