Delta Air Lines and United Airlines have maintained a dominant position in the airline industry, capturing the majority of profits since 2022. Industry analysts warn that this focus on affluent customers could become a liability if the economy experiences a downturn. Both airlines have strategically invested in services appealing to high-income travelers, with Delta reporting that over 70% of its revenue comes from households earning at least $10,000 annually. This business model raises questions about the long-term sustainability of their profits in an era of growing wealth inequality.