Originally Posted by pandaperth

Based on my very recent experience (my AA flight yesterday) I have bad news for you.

It was the first AA-marketed flight on my current ex-KHI DONE4.
I hoped/expected it to earn AA miles & points based on the distance method (as had happened with my last DONEx in 2017/18). But it earned based on the fare paid method.

So instead of the 3,000+ mile flight earning ~5,300 base miles (using the 1.75 multiplier for booking class D on an AA flight),
It instead earned a mere ~1600 base miles. Using the base fare multiplier of 5 miles per dollar, this implies a fare+surcharges of $320
(the distance of the flight represents ~6% of the total distance of the whole ticket, and the $320 represents ~6% of the base fare paid for the whole ticket, so that computes correctly)

For me personally it won't be a big deal - I will still get from no status to Platinum on the itinerary, but with fewer miles in the bank. YMMV of course