Hey All. I'm trying to bring my dog with me in F or J when I fly from the NYC area to Los Angeles (and back). On AA's website (https://www.aa.com/i18n/travel-info/...tance/pets.jsp), it says that pets can fly in F or J on A321T's. However, why I search for availability, I only see A321's flying the routes (mostly LAX-JFK). My questions are: What's the difference between A321 and A321T? And where can I find A321T availability?