To contact American Airlines customer service, visit their official website or mobile app for assistance options. You can call their customer service helpline and follow the prompts to speak with a representative. Alternatively, use the live chat feature available on the website or app for real-time support. Social media platforms, such as Twitter or Facebook, can also be used to contact their support team. For specific issues like cancellations, refunds, or name changes, ensure you have your booking details, such as your ticket number or reservation code, ready. Contacting them during non-peak hours may help reduce wait times.