I’ve been seeing a lot of non American planes parking at B,C, and D concourses. A con is the non American gates. I know it’s a game but there’s information online that tells you where the airlines park here. The odd gates from A22-27 are United gates. A29 is Spirit and the gates A24 and A26 are Southwest gates and A22 is JetBlue A28 is Frontier. The odd gates from A1-A11 are Delta gates. The E concourse is American eagle regional jets thank you for the incoming traffic here.
Your insight is appreciated. Enjoy your flight(s)! :)