American Airlines grounded all of its flights across the US for an hour on Tuesday, saying it was experiencing technical issues as airlines gear up for the Christmas travel rush. The Federal Aviation Administration said in an advisory statement early on Tuesday morning that the airline's flights across the US were grounded.

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

The key differences between American Airlines trip credits and flight credits: how to redeem them, when they expire and more.

The US transport authority lifts a ground stop on American Airlines flights after a system-wide technical issue was resolved.

A “technical issue" on Christmas Eve morning temporarily grounded all American Airlines flights nationwide. Here's what to know.

Fox News correspondent Danamarie McNicholl breaks down the technical glitch that caused American Airlines flight delays during the holiday travel season on ‘Special Report.’

American Airlines temporarily grounded all flights across the United States due to a technical issue involving a vendor-supplied flight release system. The Federal Aviation Administration (FAA) implemented a nationwide ground stop at the airline's request,