I was always under the impression that if you had the same flight number for both domestic and international that you would only get the mileage as if you had flown the route end-to-end nonstop. My flight this week, AA69, operated MAD-MIA-SFO. I had only expected to get the miles for MAD-SFO (5,811 miles) and instead got mileage for both segments (7,009 miles). I only booked this routing because it was a sale fare and a return via JFK was not available at the $700 fare. Am I thinking back to my UA days when this is what they did, or is this just the way AA credits? Can't recall ever booking SFO to any international destination on AA with the same flight number all the way through. Also got over 7,000 base miles flying over (SFO-DFW-LHR-LIS) which is exactly what I expected there.