A Federal Aviation Administration system failure caused some flights across the United States to be grounded, the agency said early Wednesday.
The full extent of the delays was not immediately known, but the delays were spread across several airlines. More than 700 flights within, into and out of the United States had been delayed on Wednesday, and more than 90 were canceled, according to FlightAware, a flight tracking company.
On social media, would-be passengers across the United States said their flights had been delayed, some reporting that their pilots or airline representatives had blamed the F.A.A. technical problem.
“The F.A.A. is working to restore its Notice to Air Missions System,” the agency said. “We are performing final validation checks and reloading the system now. Operations across the National Airspace System are affected.”
Several airports, including in Philadelphia, Tampa, Fla., and Austin, Texas, advised passengers to check with their airlines for the latest information.
This is a developing story.