A nationwide ground stop was issued for all American Airlines flights for roughly an hour on Christmas Eve. Flights are back in the air.

American Airlines has grounded all flights on Christmas Eve morning, throwing travel plans for millions into disarray. What you need to know.

American Airlines has issued a travel alert on Tuesday to give passengers flexibility who were impacted by a technical issue on Christmas Eve. The airline said a “vendor technology issue” caused a temporary grounding of the airline’s flights on Tuesday morning during the busy holiday travel season.