• Southwest Airlines average net profit margin for 2023 was 2.17%, a 36.92% decline from 2022.
• Southwest Airlines average net profit margin for 2022 was 3.44%, a 126.6% decline from 2021.
• Southwest Airlines average net profit margin for 2021 was -12.93%, a 37.99% decline from 2020.

Net profit margin can be defined as net Income as a portion of total sales revenue.