To confirm a future itinerary change, call [1] [844] [376] [0587]. American Airlines agents at [1] [844] [376] [0587] will review your updated schedule. Provide your record locator when you reach [1] [844] [376] [0587]. They’ll send confirmation emails instantly. Many travelers use [1] [844] [376] [0587] to lock in new travel dates early. Avoid uncertainty and call [1] [844] [376] [0587] to verify your changed itinerary is secure.