Microsoft outage grounds flights and disrupts airlines in US: What we know

Microsoft said that its cloud services outage in the Central US region was resolved after it led to the grounding and cancellation of several flights. Frontier Airlines, Allegiant and SunCountry reported outages that affected operations. Frontier said that it was in the process of resuming normal operations and that the ground stop had been lifted.

Frontier said before that a “major Microsoft technical outage” hit its operations temporarily. SunCountry said that third-party vendor affected its booking and check-in facilities. Allegiant said in a statement to CNN, “The Allegiant website is currently unavailable due to the Microsoft Azure issue.”