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4,700 Flights Cancelled, 10,000 Delayed! Why Are Flight Operations Disrupted At US Airports?

Air travel across the US has been disrupted, leaving millions of passengers dealing with flight cancellations and delays. Several airports have been affected, and airlines are working to get their schedules back on track.

by Priyanshi Shah
4,700 Flights Cancelled, 10,000 Delayed! Why Are Flight Operations Disrupted At US Airports?
Cover Image Courtesy: X/ @amartya_jha_

When we book air travel, we can’t always expect a smooth journey. It’s not always just about going through security checks, boarding the flight and reaching our destination. We can face technical issues, flight cancellations, delays and more. Now, air travel across the US has been disrupted, leaving millions of passengers stranded. Scroll down to know more!

Millions Of Passengers Stranded At US Airports

More than 1.5 million passengers were left stranded as flight disruptions hit airports across the US. Thousands of flights were cancelled or delayed after a telecommunications outage affected air traffic control centres nationwide. According to a FlightRadar24 report, over 4,700 flights were cancelled, and 10,000 were delayed on Friday. On Saturday, 700 flights had already been cancelled.

Moneycontrol reported that according to the Federal Aviation Administration (FAA), unusual communication problems at regional air traffic control centres made it difficult to manage flights. However, passengers can breathe a little easier as authorities reopened the airspace. But it may take airlines time to get back on schedule, as the halt lasted for more than four hours.

This nationwide halt was the first since January 2023. Back then, flights were grounded because an important FAA computer system malfunctioned. Before that, a terrorist attack caused the halt on September 11, 2001.

Also Read: Microsoft Outage: Airline Services Hit In India, 3 Flights Cancelled & 2 Delayed At Delhi Airport

Air India Issues Travel Advisory

Amid the travel chaos at the US airports, Air India issued a travel advisory stating that departures from US airports had been impacted. The airline advised passengers to check updates on its website.

Speaking about this nationwide ground stop, officials clarified that the disruption had nothing to do with a cyberattack or Microsoft‘s recent service outage. Transportation Secretary Sean Duffy blamed ageing equipment. He said that the communication failure was caused by old equipment. The routers received too much data, which led to incorrect and inconsistent information. Also, fortunately, FAA officials could still track and communicate with planes that were already in the air.

We hope the situation gets under control soon!

Also Read: Good News! India To Have 100 New Airports & Its Own Homegrown Civil Aircraft

Cover Image Courtesy: X/@amartya_jha_

FAQs

Which is the largest airport in US airport?

Denver International Airport (DEN) is the largest airport in the United States.

What is the capital of United States?

The capital of United States is Washington, D.C.

How many states are there in US?

The United States has 50 states.

Priyanshi Shah | Content Writer

Priyanshi Shah is a Content Writer at Curly Tales with 4 years of experience in writing. She loves writing about fashion, food, travel and entertainment. She has completed her graduation with a Bachelor of Business Administration (Marketing) from Gujarat University in Ahmedabad. What keeps Priyanshi going is hot chocolate, books and rom-com movies.

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First Published: November 14, 2026 12:09 PM