Chicago O’Hare International Airport experienced widespread disruption on June 18, 2026, with reports indicating that over 1,400 flights faced delays or cancellations throughout the day. This disruption created significant operational challenges at one of the United States’ busiest airports.
Airlines SkyWest and American Airlines were identified as the primary carriers responsible for a majority of these delays and cancellations. The disturbances affected a broad range of routes including domestic flights across the US as well as international services connecting to Europe and Asia.
