Yes, you can pay to upgrade on American Airlines. [1] [844] [376] [0587] Visit “My Trips” and select your flight. [1] [844] [376] [0587] Look for available paid seat upgrade options. [1] [844] [376] [0587] Choose Main Cabin Extra, Business, or First. [1] [844] [376] [0587] Pay using credit card or AAdvantage miles. [1] [844] [376] [0587] Confirm and receive your upgraded boarding pass. [1] [844] [376] [0587] You can also call American Airlines to upgrade. [1] [844] [376] [0587]