American Airlines Grounded Nationwide Tuesday Night After IT Outage, Over 1,000 Flights Delayed

American Airlines flights across the country came to a stop Tuesday evening, July 28, after an internal technology failure disrupted connectivity between key operating systems, according to the Federal Aviation Administration and the airline itself.

The FAA's Air Traffic Control System Command Center ordered a nationwide ground stop on American Airlines and its regional affiliates around 6:30 p.m. ET Tuesday, according to Daily Wire. The Command Center's advisory said all airports and facilities nationwide were affected by the outage, according to CBS News.

American Airlines confirmed the problem in a post on X. "A technology issue briefly impacted connectivity for some of our systems on Tuesday evening," the airline said, adding that its IT team was working "as quickly as possible to get the system restored," per CBS News.

The ground stop lasted under an hour. American said later that night, "Systems are coming back online now and flights are departing again," and by early Wednesday morning the airline said connectivity had been "fully restored," according to Fox Business.

The Damage: 1,100 Delays, 200+ Cancellations

Flight-tracking data cited by Daily Wire showed about 1,100 American Airlines flights delayed Tuesday night, roughly 30% of the carrier's full daily schedule, with more than 200 flights canceled outright.

The outage hit at a bad moment. Severe thunderstorms were already rolling across the East Coast Tuesday evening, independently triggering delays and ground stops at several major airports, according to Daily Wire. That weather made it harder to untangle how much of the night's chaos came from the IT failure versus the storms.

Aircraft already in the air when the outage hit were not affected, Daily Wire reported. The problem was confined to ground operations and the interlocking systems airlines depend on before a plane can push back: reservations, crew scheduling, weight-and-balance calculations, dispatch, gate and check-in technology, and links to air traffic control data feeds. A failure in any one of those can ground a fully-fueled, mechanically sound aircraft, since federal rules require dispatch and crew-legality data before takeoff.

Charlotte Still Digging Out

By Wednesday morning, the FAA had scaled back its advisory to cover only Charlotte Douglas International Airport, one of American's largest hubs, according to Fox Business. The nationwide order had been lifted, but Charlotte was still absorbing a heavy backlog.

Some inbound flights bound for Charlotte were being held at their origin airports because of congestion, Fox Business reported. Average ground delays for arrivals into Charlotte had climbed from 24 minutes to 49 minutes, with the FAA warning some flights could face significantly longer waits. The agency put the odds of extending the localized Charlotte ground stop beyond its scheduled end time at 30% to 60%.

American Airlines has not said what caused the outage, according to Fox Business. The airline has not disclosed whether it involved a software update, a hardware failure, a third-party vendor, or something else. Whether the airline or the FAA releases more detail in the coming days remains to be seen.

A Traveler's Account

CBS News spoke with Lynn Breitinger, a passenger from North Texas, who said she learned about the ground stop from an announcement near the end of her flight. "We were told maybe it was a computer problem," Breitinger said. "Either with DFW, the airport, or maybe it was an American."

American Airlines apologized repeatedly through the night. "We put a temporary ground stop in place while our teams worked to resolve the issue. We apologize to our customers for the inconvenience," the airline said, according to Fox Business. It also thanked its own staff: "We appreciate the efforts of our team to bring our systems back online so quickly and take care of our customers."

Not the First Time

This is not the first major tech-driven aviation incident in recent memory. Daily Wire, citing reporting from The Traveler, noted that in March, a faulty software update tied to widely used cybersecurity tools caused Microsoft Windows systems to fail across multiple sectors, with commercial aviation among the hardest hit. That outage led American Airlines, Delta Air Lines, United Airlines, Air Canada and several smaller carriers to halt or sharply curtail operations as dispatch, check-in and crew-management systems went offline.

Going back further, a database malfunction in January 2023 knocked out the FAA's Notice to Air Missions system, which distributes safety alerts pilots are legally required to review before flying. That failure forced a nationwide grounding of all domestic departures until the system was restored.

The recurring pattern raises an obvious question for regulators and airline executives alike: how much redundancy actually exists in the systems that keep American air travel running, and why does a single point of failure keep taking down an entire national carrier at once. Neither American Airlines nor the FAA has addressed that question publicly as of Wednesday morning.