A "technical issue" is disrupting American Airlines flights nationwide, according to the airline

American Airlines grounds all flights in US due to technical issue

American Airlines, world's largest, grounds all US flights on Christmas eve, cites "technical issue"

American Airlines said a technical issue was affecting its flights on one of the busiest travel days of the year

American Airlines grounds all US flights over 'technical issue'

American Airlines grounds all US flights on Christmas Eve

American Airlines halts all flights nationwide, citing a 'technical issue' on one of the busiest travel days of the year