American Airlines, United and Delta ground all flights worldwide due to Microsoft IT outage

American Airlines, United and Delta have slammed the brakes on all flights worldwide due to a massive "communication issues" snafu that is impacting millions worldwide .

Budget flyers weren't spared either, with Frontier hitting the pause button on their operations as well due to the shocking incident .

Social media's been buzzing with passengers sharing tales of pilots announcing a total systems blackout, leaving every bird in the fleet stuck on the ground until further notice.

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Frustrated flyers are venting about being marooned on planes that haven't budged an inch from the tarmac, while snaps of error-plagued info screens are doing the rounds online.

One peeved passenger aired their grievances on X, the platform that's picked up where Twitter left off, moaning about being stuck at SFO with zilch info on why they're not sky-bound. They griped: "We were about to depart from SFO and we are told all American airlines flights are grounded. With no other feedback."

Another chimed in with their two cents from Charlotte Douglas, spilling the beans on a nationwide IT meltdown grounding all planes. "This is a mess! We were told that all airplanes are grounded here at Charlotte Douglas because of an IT issue. Also said it is NATIONWIDE.", reports the Mirror US .

Allegiant and SunCountry (SNCY.O) got caught in the tech turmoil too.

The big three American Airlines, United and Delta have even gone cap in hand to the FAA, begging for a global halt on all flights, ABC News reports. Planes already painting the skies will keep cruising, but any American, United or Delta jet parked up is going nowhere fast.

A massive cloud outage hit Windows PCs around the world, causing chaos for several airlines. Microsoft has fixed a cloud service disruption in the Central US region that led to flight groundings and cancellations.

Frontier Airlines announced late Thursday that it's getting back to business as usual after lifting the ground stop.

US Transportation Secretary Pete Buttigieg has been keeping an eye on the situation with Frontier's flight cancellations and delays, stating that the department will ensure airlines fulfil their obligations to passengers.

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Frontier earlier reported being hampered by a "major Microsoft technical outage". SunCountry experienced disruptions to its booking and check-in processes due to a third-party vendor issue, though they didn't drop names.

Allegiant, based in Nevada, told CNN: "The Allegiant website is currently unavailable due to the Microsoft Azure issue."

Frontier had to cancel 147 flights and delay another 212 on Thursday.

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Allegiant was hit hard by delays, with 45 per cent of its flights affected. Sun Country also faced delays, with 23% of its flights not on schedule, as per FlightAware's data.

The Microsoft outage kicked off around 6pm ET on Thursday, triggering a cascade of issues. Microsoft revealed that its Azure cloud software encountered a hiccup leading to a disruption in "service management operations and connectivity or availability of services" for users in the central US.

This tech snag did not affect American Airlines; however, clients faced hiccups with Azure servicesa system designed to assist in creating, rolling out, and maintaining apps and services through the cloud.

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