Chicago O’Hare International Airport experienced extensive flight disruptions on June 30, 2026, with a reported total of 306 delayed flights alongside 4 cancellations. These disruptions affected a significant volume of departures throughout the day.
Several airlines were impacted, notably including SkyWest, Republic, and United Airlines. The delays and cancellations affected flights connecting Chicago to a range of destinations in the United States as well as international routes to Mexico, Germany, and Japan. Many travelers faced unexpected schedule changes and disruptions to planned itineraries.








