If you fly from Anch. AK Airlines uses for instance to SD Sioux Falls. Your last flight is with Delta your free baggage does apply on your return flight. They call it where you originate, and don,t be late for a Delta flight $440. If it had been AK Airlines little charge.
Little tidbit I learned for $440 is, if you are ever late and your airline has not departed you still own the ticket, you can reschedule that one way for a later date.
Once your plane that you were to late to board, leaves runway you lose that right. For some reason the airlines wont tell you that.
