Originally Posted by
Eastbay1K
This is a huge negative. And what isn't clear (perhaps someone can chime in) - for international travel, at least from the West Coast, I'm probably connecting in DFW, MIA or JFK (or other points substantially East, comprising 25 to 40% of my travel mileage). Do I no longer earn anything on the domestic portion of the international ticket?
Correct unless the domestic portion is an AS codeshare which is never since AS does not sell an international itinerary outside of North America.
Means on those trips you will only earn miles on the international flights.