• Delta Air Lines average operating margin for 2024 was 10.04%, a 10.45% decline from 2023.
• Delta Air Lines average operating margin for 2023 was 9.09%, a 33.09% increase from 2022.
• Delta Air Lines average operating margin for 2022 was 6.83%, a 119.56% increase from 2021.

Operating margin can be defined as operating margin measurement of what proportion of a company's revenue is left over after paying for variable costs of production such as wages, raw materials, etc.