Originally Posted by
flyerCO
Only allowed For domestic flights after all international have been flown. There's no SDC for international flights. Even if it was, the SDC policy is only for DL operated flights and going from AS to DL on DL coshares booked using AS.
Perhaps SDC is the wrong label for what I did and am considering doing. In December I was traveling on miles. Called the DM line the day of travel and got on an earlier flight from LHR to JFK.
I regret prefacing my question about D1 v UC with the SDC issue. I am not asking if I can change from my current itinerary to an early flight. My question is about the relative experiences of D1 v UC between either ATL and JFK and LHR.