Delta cancels 600 more flights as it struggles to recover from tech outage The Washington PostJuly 19-22, 2024 operation Delta News HubMicrosoft says EU to blame for the world’s worst IT outage EuronewsHundreds of US flights are canceled for the 4th straight day. Here’s the latest on the global tech outage CNNDelta Cancels More Flights as It Struggles to Recover From Tech Outage The New York Times