Hello. I am new here, but wanted to share my observations - I've been monitoring flights from JFK to HND for whole summer for next 300 days and I never saw even one pop-up in next 330 days. If I see 60k, it's always AA metal.
Before AA introduced back flights to Japan, I always saw J and F classes pop up here and there, but now nothing like in 3 months... Does anyone have same observations too?