Airline stocks shrug as State Department tells Americans to exercise ‘worldwide caution’ in travel warning

As the conflict in the Middle East intensifies, Americans living and traveling abroad are being asked to exercise increased caution. The U.S. State Department issued a “worldwide caution” travel advisory on July 18, 2026. “Due to heightened tensions in the Middle East, the security environment remains complex with the potential for unforeseen escalation,” the advisory read. “The Department of State advises Americans worldwide, and especially in the Middle East, to exercise increased caution,”…