Severe storms including hail and strong winds struck Atlanta's Hartsfield-Jackson International Airport on the evening of June 27, 2025, forcing Delta Air Lines to inspect approximately 100 aircraft for hail damage. The weather event led to the cancellation of nearly 400 flights on Saturday, with some reports indicating over 450 flights canceled, affecting about 14% of Delta's total U.S. flights. The disruption caused widespread delays and diversions at the world's busiest passenger airport during a peak travel period. Delta continued to experience operational challenges into the weekend, with hundreds of cancellations expected and 56 mainline flights canceled by midday Sunday, down from 581 on Saturday. The airline released updates on efforts to recover and resume normal operations. By Monday, flight operations showed signs of improvement with reduced delays and cancellations. Additionally, recent weeks have seen multiple major airlines confirm security breaches, with the FBI warning that personnel within airline systems, including vendors and contractors, may be at risk. These cybersecurity concerns are impacting airlines across North America, further complicating passenger travel.