Most airlines have recovered from global tech outage — except Atlanta-based Delta Air Lines

Atlanta's Hartsfield-Jackson International Airport was affected by a widespread communications outage that started on Friday, July 19, 2024, causing grounded flights and delays for thousands of passengers. (Matthew Pearson/WABE)

Delays at some airports continue after a faulty software update caused havoc worldwide and led to the grounding by almost all airlines of a number of flights, but the impact is receding.

Total cancellations within, into or out of the U.S. early Monday totaled 758, according to the latest data from FlightAware, which is greater than a typical with no holiday. The vast majority of cancellations were Delta Air Lines flights.

Delta reported 626 cancellations, or nearly 83% of all cancelled flights.