Originally Posted by
DYKWIA
Just highlighting that the return would normally be cancelled (even if you were already checked in). However, I think domestic flights may be treated differently, so you may be OK.
Unfortunately no different for domestic flights. If the outbound isn't used all subsequent flights on the ticket will be cancelled automatically. It would just be a question of timing - how soon will the no show be fed in to the system and the auto cancellation take place and will be OP take the return before that happens.