https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-use-aadvantage-miles-to-book-american-airlines-business-class-3-7-2025-3
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-use-aadvantage-miles-to-book-american-airlines-business-class-3-7-2025-1#Award_Availability_and_Tips_for_Booking
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-use-aadvantage-miles-to-book-american-airlines-business-class-3-7-2025
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-upgrade-to-business-class-on-american-airlines-after-booking-3-7-2025-2
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-upgrade-to-business-class-on-american-airlines-after-booking-3-7-2025-1
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-upgrade-to-business-class-on-american-airlines-after-booking-3-7-2025
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-upgrade-a-basic-economy-ticket-to-business-class-on-american-airlines-3-7-2025-3
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-upgrade-a-basic-economy-ticket-to-business-class-on-american-airlines-3-7-2025-2
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-upgrade-a-basic-economy-ticket-to-business-class-on-american-airlines-3-7-2025
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-combine-multiple-award-types-to-book-business-class-3-7-2025-1
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-combine-multiple-award-types-to-book-business-class-%EF%B8%8F-1-888-217-8739
https://americanairlinescustomersupport.zohodesk.com/portal/en/kb/articles/can-i-combine-multiple-award-types-to-book-business-class-3-7-2025