Delta Air Lines is bracing for potential significant impacts following a proposal from the U.S. Department of Homeland Security (DHS) to expand the current travel ban. The proposed changes, announced on December 3, 2025, could increase the number of restricted countries from 19 to as many as 32, with nations like Afghanistan, Libya, Yemen, and Somalia under consideration. As a major international carrier, Delta is expected to face a notable drop in passenger numbers from the affected regions, leading to a re-evaluation of flight routes and potential service cancellations. Industry projections suggest that a sharp decline in international flights due to the ban would almost certainly lead to financial losses and could reduce the overall market share of major U.S. carriers like Delta. On the same day, in a separate development, Delta expanded its Australian network by launching a new three-times-weekly service from Los Angeles to Melbourne, utilizing an Airbus A350-900.