Alaska Airlines experienced a system-wide ground stop Sunday night due to an IT outage. The disruption lasted approximately three hours before the airline was able to restore its systems and resume flight operations. Passengers experienced delays across the network as a result of the outage. Alaska Airlines has not yet released details on the specific cause of the IT issue but stated that they are investigating the incident to prevent future occurrences. Travelers are advised to check their flight status for any lingering impacts from the earlier disruption.