Originally Posted by
tkey75
Also, strictly by the rules, no SDC on tickets that contain any Intl segments, though after all Intl legs are flown is seemingly an uncodified exception.
+1
As segments are flown, they automatically get deleted from PNRs. Once all international segments no longer appear on a PNR and only domestic segments remain, SDC naturally works just fine.
If you think like a computer, it makes perfect sense.