We’ve known that revenue-based mileage earning has been coming for some time. American announced that they were going to follow Delta’s and United’s model for earning miles from flight activity back in November. Now we know it starts August 1.
On average it’s bad for flyers, you need to spend more to break even mileage earning than you do under mileage-earning based on distance. American conceded to me in November that fewer miles would be earned under the new system than are earned today.