The Federal Aviation Administration said American Airlines had canceled a requested ground stop for all its flights on Christmas Eve morning.
In a statement, American Airlines said a "vendor technology issue briefly affected flights this morning...We sincerely apologize to our customers for the inconvenience this morning."
American Airlines said the technology issue hit systems needed to release flights. The FAA said the ground stop American Airlines requested lasted about an hour.
Customers can find the latest information on their flights on aa.com and in American's mobile app, the airline said.

Homeowner loses decade-long legal battle against St. Pete over unrecorded water pipelines
An Odessa man lost his legal battle against the city of St. Petersburg today after a jury ruled that two massive water mains buried under his property can remain.