last week, AS made a significant improvement on J fare and F fare with extra 100% bonus on J fare for CX, Ba, la, qa and jl. and 200% for F fare. (including d and a class respectively.) given that as 75k gets an extra 50k bonus miles. the return for flying d fare is 450% to 650% miles flown (ba d fare earns more).

comparing to aa exec plat which earns 245% on most partners. anyone planning to switch?