Originally Posted by
riphamilton
someone upthread had mentioned that SDC is impossible if there's another carrier in your itinerary. is that always the case? i'd like to leave BOS a day early and have a night in HNL. perhaps the app won't yield any SDC options, but would a phone agent be able to get me a seat as long as G is available?
Sometimes a phone agent will do it, provided it doesn't affect/touch the partner segment. But I personally wouldn't count on it. However, once the partner segment is flown and drops off, you can SDC the rest on the app or phone like normal.