All flights across the US have been grounded due to a glitch with the Federal Aviation Administration’s computer system.

The FAA said it was working to restore its Notice to Air Missions (NOTAM) system, which alerts pilots of potential hazards along a flight route.

Some 1,162 flights within, into or out of the US have been delayed today, according to flight tracker FlightAware.com, while 94 have been cancelled.

The FAA said: “The FAA is working to restore its Notice to Air Missions System.

“We are performing final validation checks and reloading the system now. Operations across the National Airspace System are affected.

“We will provide frequent updates as we make progress.”

Several people tweeted to say they had been stranded due to the outage, with one passenger at Paris’ Charles de Gaulle airport saying no flights were flying to the US.

A total of 21,464 flights were scheduled to depart airports in the US today, according to aviation analytics firm Cirium.

Nearly 2.9 million seats are available on those departures.

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