FILE - A Southwest Airlines plane prepares to land at Midway International Airport while another taxis on the ground, Feb. 12, 2023, in Chicago. On Wednesday, June 26, 2024, Southwest Airlines said a key revenue ratio will be weaker than expected in the second quarter because of changes in how consumers book travel. That's not good news for Southwest, which is already under pressure from a hedge fund to make big changes, including getting rid of the CEO. (AP Photo/Kiichiro Sato, File)