United Airlines has seen a 25% increase in demand for flights on weekends when Taylor Swift holds concerts abroad, driving up spending and boosting local economies. Market research firm QuestionPro estimates that Swift's Eras Tour could add $5 billion to the global economy. While United hasn't added flights for Swift's concerts, Southwest has added more than 10 flights to accommodate strong demand for travel to her performances in Miami and New Orleans. This economic impact highlights Swift's influence on the travel industry and local economies.