FAA ground stops today: US airports affected by outages and delays

FAA traffic-management data early Tuesday showed at least one active airport ground stop in the U.S., after a communications-and-radar disruption tied to an air traffic control facility serving the Northeast triggered widespread delays and a round of ground stops at major New York area airports and Philadelphia.

Full list: airports under FAA ground stops today

As of the FAA’s National Airspace System (NAS) Status summary update timestamped 02:12 GMT on Tuesday, September 22, 2026, Dallas Fort Worth International Airport (DFW) was listed under an active FAA ground stop, with the stated reason tied to thunderstorms. The NAS summary displays systemwide initiatives and is designed to refresh frequently throughout the day, meaning the active list can change minute to minute.

The same FAA snapshot also showed additional national traffic-management programs affecting multiple hubs for weather, volume, and construction-related constraints, which can contribute to rolling delays even when a formal ground stop is not in effect.

Because the question of “which airports are hit today” is highly time-sensitive, travelers should treat any list as a moving target and confirm current airport status close to departure. FAA programs often get issued, extended, narrowed in scope, or canceled as conditions evolve.

What happened in the Northeast: the equipment outage that sparked ground stops

Published coverage on Monday described an equipment and telecommunications disruption involving an FAA air traffic control facility in the Philadelphia area that guides aircraft in and out of busy Northeast airspace. Reports indicated the incident affected radar and communications, prompting traffic-management restrictions that rippled into the New York metro region and beyond.

During the disruption, coverage indicated ground stops were issued for Newark Liberty International (EWR), Philadelphia International (PHL), and Teterboro (TEB), with later impacts described for John F. Kennedy International (JFK) and LaGuardia (LGA). The outages arrived during a high-profile travel window as global leaders converged on New York for the United Nations General Assembly, tightening operational margins in already congested airspace.

By Monday evening, multiple reports indicated repairs to damaged telecom lines were underway or completed and that flights were gradually resuming, though residual delays and cancellations were expected to persist as aircraft and crews fell out of position.

How an FAA ground stop works (and why it causes knock-on delays)

An FAA ground stop is one of the most restrictive traffic-management tools. In practical terms, it holds certain departures at their origin airports so that flights do not arrive at a destination that cannot safely accept its normal flow due to weather, congestion, staffing constraints, or equipment problems.

Even when a ground stop expires, the effects linger. Aircraft that never departed still need new departure slots, and airlines must rework crew duty schedules, gate plans, and aircraft rotations. That is why airports can remain in heavy delay patterns well after the original trigger is resolved.

In the Northeast event, published accounts described the disruption as a communications and radar issue, a scenario that can force controllers to run a more conservative operation. That typically means fewer arrivals per hour and tighter spacing, translating into longer queues and more cancellations.

Hacking warning context: why cybersecurity concerns are being mentioned

Some coverage paired the outage with renewed attention to cybersecurity warnings around aviation systems, reflecting broader concern about resilience and vulnerabilities in critical infrastructure. In this case, reporting framed the day’s disruption as an equipment and telecom failure, while separately noting a watchdog-style warning about hacking risks.

For travelers, the distinction matters: a technical outage and a cybersecurity advisory can appear together in headlines without indicating that a given day’s delays were caused by malicious activity. When causes are still being assessed publicly, the most reliable immediate signals for trip planning are the FAA’s operational status updates and an airline’s own rebooking policies.

Travelers impacted by a ground stop or its aftereffects are often better served by rebooking earlier rather than waiting at the airport, especially when disruptions involve constrained airspace where recovery can take a full operating day.

What travelers should do next if their airport is affected

If your itinerary involves an airport that was previously in a ground stop or is currently operating under a ground stop or major delay program, the highest-impact step is checking your flight status before leaving for the airport and again just before you depart for the terminal. When traffic-management programs change, departure times can move rapidly.

For same-day connections through the Northeast, consider options that reduce reliance on tight minimum connection times, because re-sequencing after a ground stop can create banked arrival bunching and long taxi or gate waits. When rebooking, nonstop flights can reduce exposure to cascading delays across multiple airports.

Finally, keep an eye on the reason codes that accompany FAA programs. Weather-driven initiatives often ebb and flow with forecast updates, while equipment-related initiatives can end suddenly once repairs are verified, followed by a long recovery period as schedules normalize.