China Aviation News Network: The aviation industry has always been a turbulent industry, and airlines have been working hard to make money. Let's review the airlines and airline groups with the highest profits of and before the epidemic.
No. 5 American Airlines

American Airlines located in Fort Worth . Although it may be the largest airline from multiple indicators such as fleet size, it is not the case in terms of profit data. The company's net profit in 2019 was US$1.69 billion, and its revenue for the year was US$45.7 billion. Since the pandemic, American Airlines has simplified operations and reduced long-term costs, hoping to help future profit margins.
No. 4 Southwest Airlines

Headquartered in Dallas Southwest Airlines may not be famous outside North America, but this low-cost airline has a history of setting profit records. In 2019, Southwest Airlines announced a net profit of US$2.3 billion, continuing its profit momentum over 50 years. But the epidemic has caused the airline to suffer losses for the first time.
3rd place International Airlines Group (IAG)

IAG is the parent company of British Airways, Iberian Airlines, Volin Airlines and several other European airlines. The group's revenue in 2019 was 2.4 billion €4 (US$2.5 billion), with high-end travel and summer demand pushing up the revenue of its airlines combined. The huge profits put IAG ahead of its European competitors, but the epidemic has caused losses to the group and it seems that the pace of recovery is slow.
second place United Airlines

As one of the largest players in the aviation industry, United Airlines, in 2019, the company's total revenue reached an astonishing $41 billion and net profit was $3 billion. Although the pandemic has completely changed revenue, I hope it will return to its glorious days as soon as possible.
No. 1 Delta Air Lines

The most profitable airline in the world is no one else, it is Delta Air Lines. The Atlanta-based super airline had a total revenue of $47 billion in 2019, with a net profit of $4.76 billion, and a profit margin of up to 10%. Considering the pressures of fuel prices and a few other factors, Delta's 10% profit margin is regarded as a benchmark, differentiating the company from its U.S. competitors. As the epidemic subsides, Delta hopes that its previous long-term investment will begin to pay off and quickly recover huge profits.