American Airlines faced an IT outage on July 28, 2026, delaying 1,100 flights and canceling 221 as the FAA imposed a nationwide ground stop. The issue was resolved the same evening, and operations resumed.
On July 29, 2026, U.S. Customs operations at Montréal-Trudeau International Airport were suspended due to a strong varnish odour from construction work. This caused about 20 U.S.-bound flights to be cancelled and ongoing delays for travelers.
An IT outage on July 28, 2026 forced American Airlines to ground over 1,100 flights and cancel 221 across US hubs. The FAA lifted the ground stop after connectivity was restored.