FAA grounds all fights across the US over ‘telecommunication outage’

The FAA ordered a nationwide ground stop on departures across the United States in response to a widespread communications failure that disrupted air traffic operations, according to Al Jazeera. The measure was described as precautionary while authorities worked to restore the disrupted air traffic system and ensure safe operations, with officials coordinating with airlines to manage flight schedules as the outage was addressed.

CBC expanded on the development, noting that the nationwide ground stop began Friday afternoon and was described as a safety precaution tied to extraordinary concerns within the National Airspace System. The action halted departures across the country and affected multiple airports and carriers as investigators and technical teams worked to determine the underlying cause of the communications disruption. The stoppage was described as two-phase: an immediate halt to new departures, followed by ongoing analysis and coordination with air traffic control facilities, while aircraft already in flight would continue to their destinations under the last assigned clearances.

CBC also reported a concrete operational ripple of the grounding, including at least one Alaska Airlines flight diverted to Fresno Yosemite International and three additional aircraft returning to the gate at FAT. The disruption affected departures nationwide and was pursued with no injuries or fatalities reported in connection with the initial advisory, with in-flight operations continuing under prior clearances where possible, per the CBC account.

Reuters corroborated the timeline, stating that the FAA ordered a nationwide ground stop on Friday afternoon amid widespread air traffic control communications problems. The agency’s action was described as having potential knock-on effects for flights operating to and from American cities, and the report noted that Canadian travelers could face significant delays and cancellations due to the action. Reuters characterized the measure as extraordinary while emphasizing safety and investigation as the core focus during the outage.

NBC 7 San Diego reported that the FAA’s nationwide ground stop affected all airports coast to coast, including San Diego International Airport, citing extraordinary circumstances and safety considerations. The NBC 7 piece underscored the broad scope of the action and the safety rationale behind halting departures and arrivals, but did not provide additional details on duration or a phased resumption plan.

AirLive summarized the broader technology backdrop, tying the grounding to a November 13, 2026 Microsoft service outage that began the previous day and spilled into a second day, causing communication bottlenecks across the global aviation sector. The disruptions affected airline operations reliant on cloud-based infrastructure, with some carriers reporting schedule disruptions despite core air-traffic and flight-dispatch systems largely spared.

The Vancouver Sun emphasized the operational impact on Canadian connections, noting hundreds of flights delayed at Vancouver International Airport as a result of the FAA grounding and the broader U.S. action. The report focused on delays and passenger impact at YVR, without detailing causes, specific flight numbers, or the duration of the outages, beyond the described broad disruption tied to the FAA action.

Edmonton International Airport was referenced by Reuters as reporting cancellations tied to U.S.-bound flights following the ground stop, with six of seven U.S.-bound flights canceled on Friday. The airport confirmed disruptions linked to the FAA grounding, but offered no additional details on destinations or aircraft involved.

The CBC and Reuters accounts, among others, collectively describe a two-phase grounding approach and a nationwide response intended to preserve orderly operations while investigators pursue the root cause of the air traffic control communications disruption. The material does not establish the precise cause of the outage, its exact duration, or any verified injuries or fatalities, beyond reports of diversions or cancellations associated with the stoppage.