2,600+ US flights canceled: United, American Airlines resume service after global outage

William Sikora III was supposed to fly from Philadelphia to Detroit on Friday morning.

“We are stuck at this airport,” he posted in a video on X at 6 a.m., zooming in on blue airport screens showing system errors. “United, Delta, America, all this stuff is down. People are just sitting here. The apps still say our flight’s on time because they can’t update information in the apps.”Air passengers around the world faced delays, cancellations, and problems checking in as airports and airlines were caught up in a massive IT outage that also affected industries ranging from banks to media companies.

Several U.S. carriers, including American Airlines, United Airlines, and Delta Air Lines, issued ground stops for all their flights early on Friday due to communication problems, according to the Federal Aviation Administration. There were over 2,600 flights canceled and nearly 9,200 delays as of 5 p.m. ET, according to flight-tracking website FlightAware. Most airlines were able to resume operations as the morning progressed, but many said they expected disruptions to continue throughout the day. Megan Brown said Washington Dulles Airport was surprisingly calm, even as the airline industry was in turmoil. She said the airport was less crowded than usual, making for a quicker-than-expected security screening, and passengers seemed understanding about the disruptions.

“We just took the gamble and came here, and hopefully we’ll leave today,” Brown told USA TODAY by phone from Dulles. “There’s nothing you can do.”

Her family’s 8:25 a.m. ET flight to San Francisco was delayed, but they were able to take off within a couple of hours. “A cheer just erupted as the gate agent said we are going to start boarding,” she said.

Around the world, airports and airlines advised customers to arrive earlier than normal for flights.

Around 9 a.m. Sikora posted another video showing fellow travelers sitting on the floor and standing in the middle of a crowded Philadelphia International Airport terminal.