More than 6,150 flights were cancelled across the United States on Saturday, November 14, 2026, as the fallout from the Federal Aviation Administration's nationwide ground stop dragged into a second day, and the head of the FAA warned that normal service was unlikely to return before late Sunday.

Key Points

• Airlines cancelled more than 6,150 US flights and delayed over 7,300 more by 6:45 p.m. ET on Saturday, according to FlightAware, after Friday's ground stop forced nearly 10,000 cancellations in a day.
• FAA chief Bryan Bedford said flight schedules were unlikely to return to normal until late Sunday, November 15.
• United Airlines and Delta Air Lines imposed their own ground stops on Saturday at Chicago O'Hare and New York LaGuardia, to handle congestion and gate problems.
• The FAA's Friday ground stop halted nearly all departures for almost five hours, the longest nationwide interruption since the September 11, 2001 attacks.
• Because the FAA caused the delays, airlines are not required to compensate stranded passengers.

What Happened

Saturday was supposed to be the recovery day. Instead, the cancellations kept climbing. By 6:45 p.m. ET, airlines had cancelled more than 6,150 flights and delayed over 7,300 more, according to FlightAware. Reuters counted more than 3,700 cancellations and 2,000 delays earlier in the day; the tally grew as crews ran out of legal flying hours and aircraft sat in the wrong cities. Tens of thousands of passengers remained stranded, many sleeping on terminal floors.

The pressure showed at two of the country's busiest airports. United Airlines announced a ground stop for its own flights at Chicago O'Hare on Saturday, and Delta Air Lines did the same at New York LaGuardia, both to handle congestion and gate issues. American Airlines said late on Friday it was prioritising international flights and smaller cities outside its major hubs, to speed recovery.

Background: The Five Hours That Stopped American Aviation

The trouble began at 3:36 p.m. ET on Friday, when radar and communications systems grew unstable. Transportation Secretary Sean Duffy said the FAA's switches and routers had been overloaded with data and started giving controllers inconsistent information, and with controllers unsure they could see and talk to every aircraft, the only safe option was to stop departures. The ground stop that followed halted nearly all departures for almost five hours before it was lifted at about 8:15 p.m. ET, forcing airlines to cancel nearly 10,000 flights and delay more than 7,000 others in one of the worst travel days in US history.

The breakdown was the latest sign of strain on an air traffic control system beset by ageing technology and a shortage of several thousand controllers. Officials said new technology being added to the system overloaded the antiquated equipment it was meant to replace, causing communications and radar gaps at all 22 FAA control centres. The contractor that oversees the network, L3Harris, has been blamed by Duffy for the faulty work. The only other nationwide ground stop since the September 11 attacks came in January 2023, lasting about 90 minutes.

US Flight Cancellations: How Saturday Unfolded

Saturday's cancellations were not caused by a new failure. They were the aftershock. An aircraft that missed its Friday evening flight cannot simply pick up its Saturday schedule; it must first be flown to where its next departure begins, and crews face the same problem under federal rules that limit how long they can work before resting. Each cancelled flight creates two or three more problems, which is why the tally kept rising though the skies were open.

By Saturday evening the pattern was clear: the system had no slack left. Airports that had absorbed diverted flights on Friday were full, gates were blocked by aircraft with nowhere to fly, and rebooked passengers were being bumped a second time. Friday's ground stop halted all US flights for four hours in a rare outage, and more than 2,500 flights had already been cancelled by Saturday morning. By the evening, that number had more than doubled.

Reactions and Quotes

Transportation Secretary Sean Duffy used the crisis to press for a far larger overhaul, calling on Friday for $50 billion to upgrade air traffic control, up from the $30 billion he had sought earlier. "This is an emergency," he said. "Our switches, our routers actually got overloaded with data and they started to give us inconsistencies in the data from those routers and because of that we shut the system down." He said the immediate problem was fixed and flying was safe, but warned a broader overhaul was needed. "What we have is an incredibly old air traffic control system," he said. "Give us the money to fix it."

Homeland Security Secretary Markwayne Mullin moved quickly to rule out foul play, saying there was "zero evidence" so far that the outage resulted from a cyberattack or a rogue AI system. FAA Administrator Bryan Bedford has not offered a faster timeline than late Sunday. Passengers flying on Sunday should still expect cancellations and delays.

Why It Matters

A nationwide ground stop is the aviation equivalent of pulling the emergency brake on the entire country, and it happened because the system that keeps planes apart could not be trusted. Its almost five hours, the longest nationwide interruption since the September 11 attacks, show how fragile the infrastructure underneath American air travel has become. For passengers, the sting is practical as well as symbolic: because the FAA was responsible for the delays, airlines are not required to provide compensation, so the cost of hotels, meals and rebooked tickets falls on the people who were stuck. With tens of thousands still stranded and the Thanksgiving rush less than two weeks away, the question is whether the system can hold through the busiest travel week of the year.

What Happens Next

Airlines will spend Sunday working through the backlog, repositioning aircraft and crews and rebooking stranded passengers, with Bedford's late-Sunday timeline as the marker for normality. Travellers flying in the next few days should check their status before heading to the airport and allow extra time. The FAA faces harder questions: about the technology rollout officials say triggered the failure, whether new equipment should have joined the live system, and the contractor work Duffy has blamed. Duffy has blamed L3Harris contractor work and a faulty router for the ground stop, and the investigation will shape whether the money follows.

Frequently Asked Questions

How many flights were cancelled on Saturday?
More than 6,150 US flights were cancelled and over 7,300 delayed by 6:45 p.m. ET on Saturday, November 14, 2026, per FlightAware.

When will flights return to normal?
FAA Administrator Bryan Bedford said flight schedules were unlikely to return to normal until late Sunday, November 15, 2026.

What caused the FAA ground stop?
Switches and routers were overloaded with data; Duffy blamed contractor work by L3Harris and a faulty router.

Why did United and Delta stop flights at O'Hare and LaGuardia?
United imposed its own ground stop at Chicago O'Hare and Delta at New York LaGuardia on Saturday to handle congestion and gate issues.

Will stranded passengers be compensated?
No. Because the FAA was responsible for the delays, airlines are not required to provide compensation.