Update, 6:50 p.m. Arizona time (MST), Nov. 13: Ground stop lifted
The FAA has lifted the nationwide ground stop, and departures can resume. ABC News reported at 6:23 p.m. Arizona time that the FAA said the stop was over, and Flightradar24 confirmed the lift minutes later. The stop began at 1:54 p.m. Arizona time and lasted more than four hours, ending well before the 9 p.m. Arizona time estimate on the FAA's advisory. The FAA's live airport status page no longer lists a nationwide ground stop, only normal local delays.
The fallout is huge. ABC News reports nearly 5,000 flights were canceled. United and JetBlue said they would cancel most of their remaining flights Friday night, except for some international flights. Air Canada canceled all its remaining Canada-U.S. flights for the night. Delta and United are waiving change fees for affected travelers, according to the AP. Experts quoted by the BBC called it the longest U.S. air traffic grounding since 9/11. During the stop, some departures were cleared over the ocean, in Alaska and Hawaii, and on some international routes.
At a White House briefing, Homeland Security Secretary Markwayne Mullin blamed a "telecommunications outage" and said there was "no cyberattack." He also said "the public was never at danger." There is no sign it was linked to Thursday's Microsoft 365 outage. According to Flightradar24, Secretary Duffy said switches and routers became overloaded and shut down after they began providing inconsistent data. Sources told CBS News that an update to the private air traffic control communications network, which CBS says L3Harris operates, made the network reboot and then crash. L3Harris hadn't commented as of the BBC's report, and the FAA hasn't released a full official explanation.
Flightradar24 warned that "it will take a long time for traffic to return to normal levels," and JetBlue said it expects more disruptions and cancellations Saturday. If you're flying this weekend, check your airline's app before you head to the airport.
Air travel across the United States came to a sudden halt Friday afternoon. The Federal Aviation Administration ordered an extremely rare nationwide ground stop at every U.S. airport on Nov. 13, 2026, "due to extraordinary circumstances and for reasons of safety." The cause, according to the FAA and Transportation Secretary Sean Duffy, was a communication problem hitting the air traffic control centers that guide planes across the country.
Originally published at 2:45 p.m. Arizona time (MST), Friday, Nov. 13. Updated at 6:50 p.m. Arizona time: the ground stop has been lifted (see the update above).
Departures frozen coast to coast
An advisory from the FAA's Air Traffic Control System Command Center put the ground stop into effect at 2:54 p.m. Central time, which is 1:54 p.m. Arizona time. Its message was blunt: "All departing traffic should remain ground stopped until further notice." Planes already in the air were allowed to keep flying and land. The FAA said inbound international flights would be "managed on a case by case basis."
Flight tracker Flightradar24 broke the news to millions of followers within minutes:
Issued by the FAA just moments ago, ALL US airports are currently ground stopped. This means NO flights may depart for US airports. Flights already in the air will be allowed to land. This is related to an FAA equipment outage. https://t.co/wgyuOXeF0k
— Flightradar24 (@flightradar24) November 13, 2026
That post has been viewed more than 1.1 million times. A few minutes later, Flightradar24 said about 3,100 aircraft were in the air headed for U.S. airports, and that "no additional aircraft are taking off at this time."
What went wrong?
Secretary Duffy confirmed the stop on X and pointed to a communications failure at the centers that manage high-altitude traffic between airports:
The @FAAnews issued a nationwide ground stop for all U.S. airports following a communication issue impacting all Air Route Traffic Control Centers. FAA technicians are investigating the issue. We will provide immediate updates as we have them.
— Secretary Sean Duffy (@SecDuffy) November 13, 2026
via @SecDuffy on X
The FAA's own statement was a little narrower. It said the problem hit "multiple" Air Route Traffic Control Centers, while Duffy said "all" of them. Charlotte Douglas International Airport told WBTV the stop was tied to "an FAA equipment outage." American Airlines told customers on X that the FAA was "working to resolve a technical issue affecting telecommunications at many air traffic control facilities across the country."
At first, officials didn't explain what actually failed. Some accounts on X speculated about a cyberattack, but Homeland Security Secretary Markwayne Mullin later said there was "no cyberattack" and blamed a telecommunications outage. Early explanations of the technical cause are in the update at the top of this post. The FAA hasn't released a full official explanation yet.
The Associated Press summed up the situation for its 16 million followers:
BREAKING: The FAA grounded all flights across the U.S. due to air traffic control communications problems. https://t.co/JEnbccFeR6
— The Associated Press (@AP) November 13, 2026
via @AP on X
Only the second time since 9/11
Nationwide ground stops almost never happen. The last one came on Jan. 11, 2023, when the FAA's NOTAM pilot-alert system failed. Departures were paused for about 90 minutes, and the ripple effects caused more than 10,000 delays and over 1,300 cancellations. Before that, the whole U.S. airspace was cleared after the Sept. 11, 2001, attacks.
Where things stand now
As of 6:50 p.m. Arizona time (MST), Friday, Nov. 13. The FAA has lifted the nationwide ground stop, and departures are allowed to resume. ABC News reported the FAA's announcement at 6:23 p.m. Arizona time, after a stop of more than four hours. That was well before the 9 p.m. Arizona time estimate on the original advisory. The FAA's live airport status page no longer shows a nationwide ground stop, only normal local delays like wind-related ground delay programs at San Francisco and LaGuardia.
Earlier in the afternoon, a passenger at LAX told CBS News that newly landed planes couldn't get to their gates because departing jets were stuck in place. With nearly 5,000 flights canceled, airlines expect the disruption to spill into Saturday.
If you're flying tonight or this weekend, check your airline's app before heading to the airport, look for change-fee waivers, and expect delays and cancellations to keep rippling through the schedule.
We'll keep updating this story as the FAA shares more.
Sources
- Transportation Secretary Sean Duffy on X
- FAA National Airspace System Status
- Axios: FAA issues nationwide ground stop due to "extraordinary circumstances"
- CNBC: FAA issues nationwide ground stop citing ATC communication issues
- AP: Flights halted at airports across US due to air traffic control communications problems
- BBC News live: Flights grounded across US due to air traffic control 'communication issue'
- News9/CBS: FAA orders nationwide ground stop following communication issue
- WBTV: Ground stop issued at all US airports including in Charlotte
- AP live updates: FAA lifts nationwide ground stop that halted flights across the US
- ABC News live updates: Nationwide ground stop lifted
- Flightradar24 on X: The nationwide ground stop has now been lifted
- FAA on X: Temporary telecommunications outage
- FAA on X: White House briefing with Secretaries Mullin and Duffy







